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Countries have agreed at the resumed COP16 talks in Rome to a strategy for “mobilising” at least $200bn per year by 2030 to help developing countries conserve biodiversity.

Nations also agreed for the first time to a “permanent arrangement” for providing biodiversity finance to developing nations, “future-proofing” the flow of funds past 2030.

Faced with a highly unstable geopolitical landscape and a previous set of talks that ended in disarray in Colombia, countries forged a path to consensus on a set of texts in what many nations celebrated as a win for multilateralism in uncertain times.

The agreement on finance comes despite the world’s largest biodiversity donor – the US, which has never been a formal party within these talks – recently deciding to withdraw most of its nature funding in a foreign-aid freeze under Donald Trump.

Many European countries who signed onto the agreement have also recently cut their aid budgets.

Nations also agreed on two texts for tracking their progress towards achieving the targets of the Kunming-Montreal Global Biodiversity Framework (GBF).

The GBF is a landmark deal first made in 2022 aiming to halt and reverse biodiversity loss by 2030.

Colombian politician and COP16 president Susana Muhamad received a lengthy standing ovation for her role in guiding parties to consensus in the early hours of Friday morning in Rome.

But, amid celebrations, some countries cautioned that a vast amount of progress will be needed to have a chance of halting and reversing biodiversity loss in just five years.

Some three-quarters of nations have still not submitted their UN biodiversity plans for how they will achieve the targets of the GBF – four months after the deadline.

And a recent investigation by Carbon Brief and the Guardian revealed that more than half of nations that have submitted UN biodiversity plans do not commit to the GBF’s flagship target of protecting 30% of land and seas for nature by 2030.

COP16’s back story

COP16 was the first UN biodiversity summit following the adoption in 2022 of a landmark agreement, known as the Kunming-Montreal Global Biodiversity Framework (GBF), at COP15. The overall goal of the GBF is to “halt and reverse biodiversity” loss by 2030, through four goals and 23 targets.

At COP16, many issues centred around the “means of implementation” of the GBF. Initially, the conference was set to take place in Turkey, but the country withdrew from hosting it after a series of destructive earthquakes. Colombia took on the organisation of the summit and Cali was named as host city in February 2024.

In Cali, countries agreed on a new fund for the sharing of benefits from the use of genetic data, the creation of a dedicated subsidiary body for Indigenous peoples and local communities and a new process to identify ecologically and biologically significant marine areas.

However, the final plenary ran through the night, owing to disagreements over biodiversity finance. With many delegations needing to catch flights home, COP16 was suspended the following morning due to a lack of the “quorum” needed to reach consensus.

Aruna Chandrasekhar on X/Twitter (@aruna_sekhar): "#COP16 With no quorum and no further word, the decision on a new global biodiversity fund gets bumped to an intersessional session."

Later that month, the COP16 presidency stated that the negotiations would be resumed in the new year to “address outstanding issues on finance and complete the mandate of this COP”.

Among the pending items left over from Cali was a new strategy for “resource mobilisation”, aimed at allocating $200bn annually for biodiversity conservation “from all sources” by 2030.

Alongside that, countries needed to agree on the mechanism for distributing funds. Global-south countries urged the creation of a new global fund for biodiversity, to be under the control of the COP. Meanwhile, global-north countries argued for maintaining the current fund, which is housed under the Global Environment Facility (GEF), a multilateral fund set up in the early 1990s to “support developing countries’ work to address the world’s most pressing environmental issues”.

Countries also had to revisit the monitoring framework for the implementation of the GBF, which seeks to “provide the common yardsticks that parties will use to measure progress against the 23 targets” of the GBF, according to the CBD.

Parties also failed to agree on a new text outlining the process for a global review of national biodiversity strategies and action plans (NBSAPs) at COP17 in Armenia in 2026 and COP19, four years later.

The CBD took up the remaining issues in two “resumed” sessions of COP16.

The first of these meetings, to approve the budget, was held in December under “silence procedure” – meaning the text was circulated and parties given a period of time to respond with any objections. The second resumed session was held in person at the headquarters of the UN Food and Agriculture Organization (FAO) in Rome, from 25 to 27 February 2025, to address all remaining decisions.

Finance

Post-2030 fund

The fight over a new, dedicated global biodiversity fund – the subject of fraught negotiations in Nairobi, Montreal and Cali – dominated the agenda at the resumed COP16 nature talks in Rome.

As a whole, COP16 was supposed to deliver a strategy for raising funds to assist countries in implementing the “ambitious” nature deal struck at COP15.

It was also expected to deliver a financial mechanism under the COP to provide developing countries with the means to meet biodiversity goals and targets.

At the resumed COP16 talks in Rome, countries made history by agreeing to set up a “permanent arrangement for the financial mechanism” under the COP by 2030 – a decision that is decades in the works.

Paragraph 19 of the final decision on resource mobilisation
Paragraph 19 of the final decision on resource mobilisation that establishes a permanent arrangement for a financial mechanism under the COP to support developing countries. Credit: UN CBD (2025)

While the decision does not establish a brand new fund immediately, it is “future proofing” global biodiversity finance beyond 2030, Georgina Chandler from the Zoological Society of London told a press briefing. The text leaves open the form that the finance will take – either under a new entity, or as part of existing funding instruments that biodiverse countries have been seeking to reform.

A permanent financial mechanism is the “unfinished business of the COP, 30 years in the making”, said Lim Li Ching from the Third World Network. While there is much to be debated at successive COPs, “at least the mechanism is locked in”, she told Carbon Brief.

The resumed COP16 also saw countries agree on a roadmap to develop the financial mechanism, reform existing financial institutions and mobilise funding from “all sources” to close the $200bn per year biodiversity funding gap.

To speed up raising these resources, the text asks the executive secretary of the CBD to “facilitate an international dialogue” of ministers of environment and finance from developing and developed countries.

This was a “highlight” of the outcome in Rome, Brian O’Donnell, director of the Campaign for Nature, said in a statement.

The resumed COP16 talks agreed to facilitate an international dialogue between ministers to help finance the global nature deal
The resumed COP16 talks agreed to facilitate an international dialogue between ministers to help finance the global nature deal, while calling for studies to undertake studies on the links between biodiversity, debt and climate finance. Source: UN CBD (2025)

Per the roadmap, countries will have to decide on criteria for the mechanism by COP17 next year in Armenia. By COP18, they will have to decide whether this will take the form of a new fund and, if so, make it operational by COP19 in 2030.

At the same time, the COP has tasked its expert subsidiary body to look into “opportunities for broadening the contributor base”, accommodating a key ask from developed countries.

This means including more countries, such as China, as formal biodiversity finance providers, according to Laetitia Pettinotti from development finance thinktank ODI. Pettinotti told Carbon Brief:

“Countries have agreed to look into the contributor base. But, actually, many developing countries already contribute biodiversity finance via their funding to multilateral entities – the GEF, WB [World Bank], UN agencies, etc. So part of this discussion will need to look at recognising those contributions.”

Resource mobilisation: from Cali to Rome

The Rome talks were expected to pick up where Cali left off – with an ambitious, but divisive, draft decision on resource mobilisation issued by Muhamad in the early hours of 2 November last year.

That document contained a proposal to establish a new global biodiversity fund under the COP’s governance, to be ready by COP30.

This had been a key demand of developing countries in the run-up to the previous talks in Montreal. Instead, the final nature deal for this decade – gavelled through at COP15 in a hurry – gave the world an interim fund with a mandate to operate only until 2030.

Without enough countries in the room to pass the decision in Cali, the fight for a new fund had to wait until COP16 resumed in Rome.

Between the Cali and Rome talks, Muhamad held regional consultations and bilateral meetings with countries and ministers from around the world in an effort to find agreement.

On 14 February, Muhamad released a “reflection note” laying out the state of play in the finance negotiations. In this, she discussed some of the “important differences” remaining between countries on the resource mobilisation draft and areas of “broad agreement” that emerged in her consultations.

Aruna Chandrasekhar on BlueSky (‪@arunacsekhar.bsky.social‬): "The fight for a new nature fund brought #COP16 talks to a halt in Colombia last year. A week before talks resume in Rome, a "reflection note" from Susana Muhamad – whose COP16 presidency has been under a cloud after her resignation – suggests a way out. "

Some of these disagreements, she said, were partly rooted in “different interpretations of terms used”. To address this, the note contained a glossary defining terms used within the finance texts.

Muhamad put forward a roadmap towards improving global biodiversity finance architecture, which, she said, countries “broadly support[ed]” at that stage.

In an updated note on 21 February, the president issued “textual suggestions” on the most contentious paragraphs of the resource mobilisation text.

Orla Dwyer on BlueSky (@orladwyer.carbonbrief.org‬): "New doc from COP16 pres Susana Muhamad feat. suggestions to ease finance sticking points ahead of the biodiversity talks picking up again next week in Rome Left shows one part of most recent draft text around a new nature fund proposal, right is Muhamad's suggestion"

At the opening plenary on 25 February, minister Muhamad said the discussions at this COP were “not technical decisions”, but rather “political decisions”. She questioned whether countries were able to “transcend…old and outdated” institutional structures and move towards something new.

Some countries broadly supported the president’s suggestions, but were clear that more discussions were needed. Others, such as India, were sceptical and favoured the explicit language in the draft text from Cali.

Most developing countries called for establishing a dedicated financial instrument at the Rome talks, opposed expanding the donor base and highlighted the need to “honour” existing financial commitments.

In turn, most developed countries wanted to improve – not replace – existing funding instruments and broaden the list of donor countries and funding sources. They also favoured a process leading up to COP19 that would not “prejudge the outcome”.

Fiji noted in the opening plenary that adopting a clear and comprehensive resource mobilisation strategy is “critical” to the success of the GBF. They added that the future process and roadmap must be “efficient and streamlined”, given the urgency of financing needs.

Orla Dwyer on BlueSky (@orladwyer.carbonbrief.org‬): "COP16.2 officially opens Susana Muhamad: “We have an important responsibility here in Rome. In 2025, we can send a light globally and be able to say even with our differences, even with our tensions…we are able to collaboratively work together for something that transcends our own interests.”

Informal consultations on resource mobilisation took place on the evening of 25 February. The next morning, Muhamad thanked delegates for the “very open and frank discussion” on their various positions on the text.

The negotiations moved slowly for most of the three days. A third of the morning plenary on 26 February, for example, was taken up by a back-and-forth over a request from the DRC to change the agenda.

Orla Dwyer on BlueSky (@orladwyer.carbonbrief.org‬): "NEW resource mobilisation draft has arrived at #COP16 More details added to paragraphs 19-25 where the main contentions lie Countries will go through this revised draft in a plenary meeting starting shortly "

A revised resource mobilisation document was released by the presidency on the evening of 26 February. Minutes later, countries were invited to give their thoughts on the significantly updated text in plenary.

Daniel Mukubi Kikuni, lead negotiator for the Democratic Republic of the Congo. Credit: IISD/ENB | Mike Muzurakis (2025)
Daniel Mukubi Kikuni, lead negotiator for the Democratic Republic of the Congo. Credit: IISD/ENB | Mike Muzurakis (2025)

Many expressed their surprise at the revisions and requested more time to review the text, which was only available in English as it had not yet been translated into the other five UN languages.

Egypt and the DRC’s request to give the African Group a few minutes to consult on the text was denied by Muhamad, with countries instead encouraged to discuss the text and present their concerns as regional groupings the next morning.

“This is becoming a precedent that a region cannot ask for regional consultations,” said Daniel Mukubi Kikuni of the DRC at the evening plenary, adding that the draft resembled Muhamad’s “informal” reflection note more than its predecessor that was negotiated by all countries in Cali. Kikuni added:

“[This document has been] deeply changed, transformed and modified. We cannot accept it as a foundational document for our discussion.”

Panama said that it was concerned by a “lack of ambition” in the revised document. Other countries, including Ivory Coast and Egypt, expressed concern that the pace of the document’s proposed roadmap was “missing urgency” and was too “process-heavy”, given that 2030 is five years away.

While the EU, Norway and the UK appreciated the text as a “balanced package” and said it was “very close to the landing zone”, they were caught off-guard by text that suggested “possible direct allocation” of funds to countries.

The next morning, another plenary took place for regional groupings to provide consolidated feedback on the updated draft. Several blocs and countries suggested alternative text, including a “compromise” proposal submitted by Brazil on behalf of BRICS countries and Zimbabwe articulating Africa’s position.

Brazil’s Patrick Luna conferring with COP16 president Susana Muhamad and the UN’s biodiversity secretariat. Credit: IISD/ENB | Mike Muzurakis (2025)
Brazil’s Patrick Luna conferring with COP16 president Susana Muhamad and the UN’s biodiversity secretariat. Credit: IISD/ENB | Mike Muzurakis (2025)

With the clock ticking and much to accomplish before midnight, Muhamad adjourned the plenary and asked up to five representatives from regions to work with her in a small group towards a consensus text to bring to the plenary.

After a six-hour closed door session, a new resource mobilisation non-paper emerged around 7pm on the final evening of talks.

The non-paper referred to the establishment of a “permanent arrangement for the financial mechanism”, mirroring text suggested by Brazil on behalf of BRICS countries earlier in the day. Instead of promising a new fund, the text said that the mechanism could be “entrusted to one or more entities, new, reformed or existing” – suggesting that a compromise had been struck between developed and developing countries

The non-paper had just one bracket in place (which, in UN documents, signals disagreement), stating that the final structure of the mechanism had to be “non-discriminatory”, which some delegates feared could potentially rule out certain funds that were limited by sanctions.

Paragraph 21(d) of the non-paper
Paragraph 21(d) of the non-paper published on the evening of 27 February. Source: UN CBD (2025)

Bernadette Fischler Hooper, the head of international advocacy at WWF, told the press that this was a “make or break moment” to determine the levels of trust between countries, but that the text “showcased the high art of diplomacy”. She added:

“It doesn’t sound very exciting, but the fact that there will be [an instrument] from 2030 onwards is actually a huge step forward, because they haven’t managed to do that for the last five years. That was what nearly brought the COP15 in Montreal to fall.”

The presidency released a final revised document on resource mobilisation at 10:40pm, when the final plenary was already long-delayed.

This contained the same text as the non-paper, but with the final bracket removed. With no interventions, countries agreed and the final resource mobilisation text was gavelled through amid applause, cheers and tears in the plenary hall.

Aruna Chandrasekhar on BlueSky (‪@arunacsekhar.bsky.social‬): "Not a new nature fund just yet, but developing countries get something much bigger, 3 decades in the making: a permanent mechanism for biodiversity finance. Esp significant in today's geopolitical climate that has cast a cloud over cooperation and hopes for more funding for nature and climate."

Minutes later, after interventions from the EU and Japan, Brazil cautioned against last-ditch changes to the closely related financial mechanism text, saying that “if we start to blow too close to [a castle of] cards, then everything starts to fall off”.

After a show of support from former COP-hosts Canada, the COP adopted the decision on the financial mechanism.

Juliette Landry of the Institute for Sustainable Development and International Relations (IDDRI) described the finance outcome to Carbon Brief as “a delicate balance” struck between “reluctant parties”. She added that countries had “agreed to lift polarised opposition” around a new fund in order to fix “systemic” gaps in existing biodiversity funding.

The figure below illustrates the development of language around a new financial instrument, in each iteration of the resource mobilisation text.

Graphic showing successive iterations of language around the new financial instrument from Cali to Rome.
Graphic showing successive iterations of language around the new financial instrument from Cali to Rome.

Successive iterations of language around the new financial instrument from Cali (left) to Rome (centre and right). Source: UN CBD (2024, 2025a, 2025b)

One of the drivers behind finance reform is that developing countries say they can struggle to access biodiversity finance. Ramson Karmushu from the International Indigenous Forum on Biodiversity told a press conference that submitting a funding proposal can be complicated and time-consuming.

COP16 delegates celebrate the adoption of decisions. Credit: IISD/ENB | Mike Muzurakis (2025)
COP16 delegates celebrate the adoption of decisions. Credit: IISD/ENB | Mike Muzurakis (2025)

He further noted that proposals which ask for data can be difficult for Indigenous peoples when the data is “in our minds, not in computers”.

Lim Li Ching from TWN, meanwhile, told Carbon Brief that despite the financial goals for 2025 and 2030 not being discussed in Rome, they remain “incredibly important”. She concluded:

“There’s still a long road ahead, but we live to fight another day.”

Global review

Another text that was adopted in Rome was on mechanisms for planning, monitoring, reporting and review (PMRR), including a global review of progress due to be conducted at COP17 in Armenia in 2026.

This is document outlines the schedule for how countries will assess their progress towards meeting the targets of the GBF in the coming years.

It is the first time in the history of biodiversity talks that countries have agreed to a text specifically on tracking their own progress. The groundwork for this was laid out in the GBF itself, which includes a section on “responsibility and transparency” from countries.

“Planning” refers to countries submitting national biodiversity strategies and action plans (NBSAPs). Countries were meant to submit new NBSAPs by October 2024, but, so far, three-quarters of countries have yet to do so.

“Monitoring” refers to countries using indicators set out in the monitoring framework (see below) to assess their progress towards meeting biodiversity targets.

“Reporting” refers to the need for countries to produce national reports detailing this progress by early 2026. Shortly after this, a “global report” will be produced, assessing NBSAPs and national targets to track whether countries are on track for the targets of the GBF.

“Review” refers to a global review of progress, which is due to take place at COP17.

In Cali, countries managed to produce a bracket-free version of the PMRR text.

At the time, observers said it was generally positive that nations had managed to agree to a way for tracking their own progress, but noted that the text lacked a clear follow-up procedure to ensure countries increase their efforts accordingly after the global review.

Some also lamented the lack of opportunities for all stakeholders, including civil society, to participate in the PMRR process.

Despite countries finalising the text, it was not adopted at the end of the Cali talks. This is because it was scheduled for adoption after the texts on finance, which countries ultimately failed to find consensus on.

In Rome, the CBD secretariat presented a new version of the PMRR text during a plenary on 25 February. This included an adjusted timeline reflecting that work towards the report and review will start following the end of the resumed talks, rather than December 2024 as previously set out.

A representative of the secretariat said the timeline for ensuring all the work is completed is now extremely “tight”, but still achievable.

Many nations expressed their support for the PMRR text and urged other countries to accept it without making any further changes.

Daisy Dunne on BlueSky (‪@daisydunne.carbonbrief.org‬): "Countries are now considering an updated text on mechanisms for planning, monitoring, reporting and review for the global biodiversity framework This includes a timeline for preparing a global report of progress for 2026 Many parties are expressing their support, Russia raising q's"

However, Russia and Zimbabwe both raised concerns with small details of the text. COP16 president Susana Muhamad said she would consult privately with parties that were not yet happy to accept the PMRR text.

In plenary on the following day, countries turned to the PMRR text again.

At this point, Zimbabwe suggested adding in a new footnote.

Zimbabwe’s specific concern was around a section of the text that invites non-state actors, such as NGOs and companies, to voluntarily contribute what they are doing to meet the targets of the GBF to the CBD’s online portal.

Excerpt from a negotiated UN biodiversity text on mechanisms for planning, monitoring, reporting and review (PMRR). Source: UN Convention on Biological Diversity (2025)
Excerpt from a negotiated UN biodiversity text on mechanisms for planning, monitoring, reporting and review (PMRR). Source: UN Convention on Biological Diversity (2025)

Zimbabwe called for a footnote noting that these submissions shall be subject to the consent and approval of the country that the non-state actor is based in.

This call was backed by Cameroon, Egypt, Indonesia, Russia, Ghana, the Ivory Coast, the DRC and Russia, according to the Earth Negotiations Bulletin. It was opposed by the European Union and Norway.

Explaining the possible motivations of including such a footnote in the text, one observer told Carbon Brief that, from a “positive” perspective, it might allow countries to block “greenwashing” from companies, adding:

“If you want to be a little bit more cynical about it, it gives countries an opportunity to be less open to hearing from voices they don’t necessarily want to hear criticism from.”

The next day, all nations agreed to include this new footnote – leaving no outstanding issues.

Daisy Dunne on BlueSky (‪@daisydunne.carbonbrief.org‬): "Nations have finalised a document for planning, monitoring, reporting, and review (PMRR) in plenary at #COP16 There was just one outstanding issue – in classic COP fashion – with a footnote, which has been resolved Formal adoption of documents won't happen until later tonight, final plenary at 9pm"

During the summit’s final plenary session, the PMRR text was gavelled through with no objections.

Daisy Dunne on BlueSky (‪@daisydunne.carbonbrief.org‬): "The lightning speed has continued! Parties just adopted the GBF monitoring framework AND the text on planning, monitoring, reporting, and review (PMRR), including the global review Again no objections Susana Muhamad says countries have given "arms, legs and muscles" to the GBF"

Monitoring framework

The monitoring framework is a document that lays out how countries will measure their progress towards the individual targets of the GBF, using four types of indicators: headline; binary; component; and complementary:

  • Headline indicators: used to measure quantifiable progress towards a given target, such as the pledge to restore 30% of degraded ecosystems by 2030.
  • Binary indicators: yes-or-no questions used to evaluate progress towards more qualitative goals, such as engagement with women and youth.
  • Component indicators: used to measure progress towards specific parts of the targets of the GBF.
  • Complementary indicators: used to measure progress towards related goals that are not made explicit in the GBF itself.

While headline and binary indicators are mandatory for countries to report, component and complementary indicators are optional.

During the Cali summit, Lim Li Lin, a senior legal and environment advisor at Third World Network, told Carbon Brief:

“Everyone’s doing a juggle, right? We want the good ones to go in the mandatory and we want the bad ones to go in the complementary, if we can’t get rid of them. And everyone’s doing the same thing from their own interest and perspective.”

Going into Rome, the entire monitoring framework was contained in brackets – meaning, in UN parlance, that the text had not been agreed. This was a result of manoeuvring by the DRC during Cali to ensure that the fate of the framework was tied to that of the finance deal.

Within the text, however, were two outstanding areas of disagreement: one on the indicator for target 7 on reducing harm from pollution, including pesticides; and one on the indicator for target 16 on enabling sustainable consumption.

On pesticide usage, parties were split between requiring countries to report their “pesticide environment concentration” and the “aggregated total applied toxicity”. The former was adopted as part of the monitoring framework during COP15, while the latter was proposed by the technical expert group that met in between COP15 and COP16.

In Colombia, parties converged on allowing both methods to be used as headline indicators, but could not reach agreement on an accompanying footnote explaining why both were being listed and how parties had to report.

In the plenary on 25 February, the UK proposed a compromise footnote text allowing parties to choose which headline indicator to use.

Footnote on pesticide indicators from the adopted text of the monitoring framework. Source: Convention on Biological Diversity (2025)
Footnote on pesticide indicators from the adopted text of the monitoring framework. Source: Convention on Biological Diversity (2025)

Although some countries suggested prioritising one indicator over the other, the proposal was approved “in the spirit of compromise”, Earth Negotiations Bulletin reported. A separate footnote explained that the FAO is working to “further develop and test the aggregated total applied toxicity headline indicator”.

On sustainable use, countries were split over non-binding component indicators on “global environmental impacts of consumption” and “ecological footprint”. Brazil suggested removing the indicator on global impacts of consumption, “noting that it cannot be validated at the national level”, according to the Earth Negotiations Bulletin.

Discussions on the sustainable-use indicators spilled over into the second day of the Rome talks. The compromise proposal, brought forward by the EU, was to remove the indicator on global environmental impacts of consumption, but retain the indicator on ecological footprint, along with a footnote on methodology and the availability of data.

The updated text was accepted with no objections during the final plenary on 27 February.

Cooperation with other conventions

A text highlighting the links between the Convention on Biological Diversity and other organisations was not discussed until the final hours of the Rome talks.

The text was not viewed as contentious near the start of the three-day summit. Amid the trickier negotiations, it was pushed down on the agenda until a dramatic finale in which the text was approved, un-approved and then gavelled through with last-minute amendments.

The Cook Islands and other countries expressed disappointment with the final tweaks, but said they agreed in order to get a deal over the line.

The agreement recognised, among other things, the ties between the three Rio Conventions – the UN treaties agreed in 1992 under which countries meet separately to negotiate on climate change, biodiversity and desertification.

The final COP16 cooperation decision “invites” countries to “strengthen synergies and cooperation in the implementation of each convention, in accordance with national circumstances and priorities”.

The presidency released a new version of the draft text on 27 February. Among the changes in this text from the previous December draft was the removal of two bracketed paragraphs stressing the importance of future collaboration between the CBD and the global treaty on governing the sustainable use and conservation of biodiversity beyond national jurisdiction (“BBNJ”, or the “High Seas Treaty”).

In the closing plenary, Iceland opposed the deletion of these “two very important paragraphs” referring to the BBNJ treaty “without any discussion”. Russia, supported later by Brazil, stood by the deletion, adding that they were “not in a position to bring [those paragraphs] back”.

The negotiations on this draft went on until close to midnight on 27 February when Muhamad said, much like “Cinderella”, they were running out of time. (The UN translators were supposed to work only until midnight, although they ended up staying through the end of the plenary.) In light of this constraint – and amid disagreement on BBNJ’s inclusion – Muhamad withdrew discussions on the text, pushing its agreement to COP17.

However, Switzerland, the EU and Zimbabwe intervened to push for the approval of the “really important” text. Iceland withdrew its intervention on BBNJ and Muhamad moved to adopt the document.

But Russia noted that the president had not addressed their proposal to delete paragraph 20, which discussed collaboration with the future UN plastic pollution treaty on the pollution-reducing target of the GBF.

After indications of support from India, Switzerland and the EU, the text was adopted by the plenary – now with paragraph 20 removed.

Paragraph 20 of the draft text on cooperation with other conventions and international organisations
Paragraph 20 of the draft text on cooperation with other conventions and international organisations. Source: UN CBD (2025)

But it did not end there. Argentina took to the floor to suggest further amendments in three parts of the text. Muhamad said this interjection was too late, but Argentina argued that they requested to speak before the gavel fell.

Brazil backed Argentina and recalled the ending of COP15 in Montreal when the final GBF was gavelled through, despite objections by the DRC.

Brazil said this is a “wound that has not healed” for developing countries and that, while they disagree with Argentina’s position, they support their right to speak up.

Muhamad said she did not see Argentina’s request before dropping the gavel, but offered to postpone cooperation negotiations, if countries agreed. The EU did not want this and suggested deleting the paragraphs Argentina took issue with.

These included paragraph 7, referring to FAO work on a draft action plan on biodiversity for food and nutrition, and paragraph 12, discussing the rights of nature and other knowledge systems.

Georgia and Zimbabwe intervened to say that, while unfortunate to remove this text, they agreed with the EU. After more back-and-forth, the text was once again gavelled through, with the proposed amendments.

The final text also referenced outcomes from the UN Environment Programme, the World Health Organization and others.

Around the COP

The Rome COP was a more low-key affair than other summits. There were no side events, parallel meetings or working groups – just plenary sessions, followed by informal evening meetings between countries.

Around 1,000 people attended the talks, compared to 14,000 in Cali.

In the run-up to the summit, Muhamad’s COP16 presidency was called into question after she announced her resignation as Colombia’s environment minister on 9 February. The move was in protest of a controversial cabinet appointment by president Gustavo Petro, Reuters reported.

Muhamad asked Petro in her resignation letter to let her remain in the position until 3 March to allow her to conclude the COP16 talks, Climate Home News said.

In the end, she presided over the Rome talks, telling Carbon Brief in a press conference that she continued to have full capacity as environment minister.

Environment ministers and vice-ministers from Canada, Colombia, DRC, Guinea-Bissau, Madagascar, Peru, Armenia, Fiji, Germany, Suriname confirmed they would attend the talks.

The Cali Fund – a mechanism where companies can contribute money if they use digitally accessed genetic resources from nature in their products – was officially launched at a press conference in Rome on Tuesday 25 February.

Orla Dwyer on BlueSky (@orladwyer.carbonbrief.org‬): "The Cali fund - where companies who use genetic data from nature in their products can send cash - has been officially launched (This fund was one of the main outcomes of the COP16 talks in Cali)"

The fund – which was one of the major successes of the Cali talks – is currently empty.

A number of companies are already “actively considering” paying into the fund, Astrid Schomaker said at the launch of the fund. (She would not name specific companies when asked by Carbon Brief.)

The CBD chief said the convention has actively contacted companies and business groups to discuss paying into the fund. Muhamad added at the press conference that the fund is not for “charity from the companies”, but “fair payment for the use of global biodiversity”.

The resumed nature talks came at a volatile time in climate and nature diplomacy. The new administration of the US – a major donor to climate and nature funds – caused turmoil and uncertainty across the globe when Donald Trump announced moves to shut down the US Agency for International Development (USAid).

The UN confirmed to Carbon Brief that the US did not send a delegation to Rome.

This was a first for biodiversity talks. Despite not being party to the CBD, US officials usually still attend talks to contribute to negotiations as observers.

Daisy Dunne on BlueSky (‪@daisydunne.carbonbrief.org‬): "NEW: The UN has confirmed to me that there are no US officials present at #COP16 in Rome US is not signed up to the UN biodiversity convention, but usually attends to participate in negotiations To my best of my knowledge, this is the first time the US has been missing at biodiversity talks"

At the opening plenary of the talks, Susana Muhamad spoke about the need for agreement amid the current “polarised, fragmented, divisive geopolitical landscape”. She added:

“We have an important responsibility here in Rome. In 2025, we can send a light globally and be able to say that still, even with our differences, even with our tensions…we are able to collaboratively work together for something that transcends our own interests.”

At the sidelines of the talks, the UK made a snap decision to belatedly publish its NBSAP, Carbon Brief reported.

Some three-quarters of nations still have not published their NBSAPs, four months after the UN deadline.

On the summit’s final day, youth activists held a demonstration in the corridors of the conference, in protest of their lack of opportunities to speak at the event.

Daisy Dunne on BlueSky (‪@daisydunne.carbonbrief.org‬): "Representatives of the youth global biodiversity network are protesting at #COP16 in Rome They say the “rushed” plenary sessions mean observers have not had a chance to contribute"

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Cropped 25 February 2026: Food inflation strikes | El Niño looms | Biodiversity talks stagnate

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We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.

This is an online version of Carbon Brief’s fortnightly Cropped email newsletter.
Subscribe for free here.

Key developments

Food inflation on the rise

DELUGE STRIKES FOOD: Extreme rainfall and flooding across the Mediterranean and north Africa has “battered the winter growing regions that feed Europe…threatening food price rises”, reported the Financial Times. Western France has “endured more than 36 days of continuous rain”, while farmers’ associations in Spain’s Andalusia estimate that “20% of all production has been lost”, it added. Policy expert David Barmes told the paper that the “latest storms were part of a wider pattern of climate shocks feeding into food price inflation”.

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NO BEEF: The UK’s beef farmers, meanwhile, “face a double blow” from climate change as “relentless rain forces them to keep cows indoors”, while last summer’s drought hit hay supplies, said another Financial Times article. At the same time, indoor growers in south England described a 60% increase in electricity standing charges as a “ticking timebomb” that could “force them to raise their prices or stop production, which will further fuel food price inflation”, wrote the Guardian.

TINDERBOX’ AND TARIFFS: A study, covered by the Guardian, warned that major extreme weather and other “shocks” could “spark social unrest and even food riots in the UK”. Experts cited “chronic” vulnerabilities, including climate change, low incomes, poor farming policy and “fragile” supply chains that have made the UK’s food system a “tinderbox”. A New York Times explainer noted that while trade could once guard against food supply shocks, barriers such as tariffs and export controls – which are being “increasingly” used by politicians – “can shut off that safety valve”.

El Niño looms

NEW ENSO INDEX: Researchers have developed a new index for calculating El Niño, the large-scale climate pattern that influences global weather and causes “billions in damages by bringing floods to some regions and drought to others”, reported CNN. It added that climate change is making it more difficult for scientists to observe El Niño patterns by warming up the entire ocean. The outlet said that with the new metric, “scientists can now see it earlier and our long-range weather forecasts will be improved for it.”

WARMING WARNING: Meanwhile, the US Climate Prediction Center announced that there is a 60% chance of the current La Niña conditions shifting towards a neutral state over the next few months, with an El Niño likely to follow in late spring, according to Reuters. The Vibes, a Malaysian news outlet, quoted a climate scientist saying: “If the El Niño does materialise, it could possibly push 2026 or 2027 as the warmest year on record, replacing 2024.”

CROP IMPACTS: Reuters noted that neutral conditions lead to “more stable weather and potentially better crop yields”. However, the newswire added, an El Niño state would mean “worsening drought conditions and issues for the next growing season” to Australia. El Niño also “typically brings a poor south-west monsoon to India, including droughts”, reported the Hindu’s Business Line. A 2024 guest post for Carbon Brief explained that El Niño is linked to crop failure in south-eastern Africa and south-east Asia.

News and views

  • DAM-AG-ES: Several South Korean farmers filed a lawsuit against the country’s state-owned utility company, “seek[ing] financial compensation for climate-related agricultural damages”, reported United Press International. Meanwhile, a national climate change assessment for the Philippines found that the country “lost up to $219bn in agricultural damages from typhoons, floods and droughts” over 2000-10, according to Eco-Business.
  • SCORCHED GRASS: South Africa’s Western Cape province is experiencing “one of the worst droughts in living memory”, which is “scorching grass and killing livestock”, said Reuters. The newswire wrote: “In 2015, a drought almost dried up the taps in the city; farmers say this one has been even more brutal than a decade ago.”
  • NOUVELLE VEG: New guidelines published under France’s national food, nutrition and climate strategy “urged” citizens to “limit” their meat consumption, reported Euronews. The delayed strategy comes a month after the US government “upended decades of recommendations by touting consumption of red meat and full-fat dairy”, it noted. 
  • COURTING DISASTER: India’s top green court accepted the findings of a committee that “found no flaws” in greenlighting the Great Nicobar project that “will lead to the felling of a million trees” and translocating corals, reported Mongabay. The court found “no good ground to interfere”, despite “threats to a globally unique biodiversity hotspot” and Indigenous tribes at risk of displacement by the project, wrote Frontline.
  • FISH FALLING: A new study found that fish biomass is “falling by 7.2% from as little as 0.1C of warming per decade”, noted the Guardian. While experts also pointed to the role of overfishing in marine life loss, marine ecologist and study lead author Dr Shahar Chaikin told the outlet: “Our research proves exactly what that biological cost [of warming] looks like underwater.” 
  • TOO HOT FOR COFFEE: According to new analysis by Climate Central, countries where coffee beans are grown “are becoming too hot to cultivate them”, reported the Guardian. The world’s top five coffee-growing countries faced “57 additional days of coffee-harming heat” annually because of climate change, it added.

Spotlight

Nature talks inch forward

This week, Carbon Brief covers the latest round of negotiations under the UN Convention on Biological Diversity (CBD), which occurred in Rome over 16-19 February.

The penultimate set of biodiversity negotiations before October’s Conference of the Parties ended in Rome last week, leaving plenty of unfinished business.

The CBD’s subsidiary body on implementation (SBI) met in the Italian capital for four days to discuss a range of issues, including biodiversity finance and reviewing progress towards the nature targets agreed under the Kunming-Montreal Global Biodiversity Framework (GBF).

However, many of the major sticking points – particularly around finance – will have to wait until later this summer, leaving some observers worried about the capacity for delegates to get through a packed agenda at COP17.

The SBI, along with the subsidiary body on scientific, technical and technological advice (SBSTTA) will both meet in Nairobi, Kenya, later this summer for a final round of talks before COP17 kicks off in Yerevan, Armenia, on 19 October.

Money talks

Finance for nature has long been a sticking point at negotiations under the CBD.

Discussions on a new fund for biodiversity derailed biodiversity talks in Cali, Colombia, in autumn 2024, requiring resumed talks a few months later.

Despite this, finance was barely on the agenda at the SBI meetings in Rome. Delegates discussed three studies on the relationship between debt sustainability and implementation of nature plans, but the more substantive talks are set to take place at the next SBI meeting in Nairobi.

Several parties “highlighted concerns with the imbalance of work” on finance between these SBI talks and the next ones, reported Earth Negotiations Bulletin (ENB).

Lim Li Ching, senior researcher at Third World Network, noted that tensions around finance permeated every aspect of the talks. She told Carbon Brief:

“If you’re talking about the gender plan of action – if there’s little or no financial resources provided to actually put it into practice and implement it, then it’s [just] paper, right? Same with the reporting requirements and obligations.”

Monitoring and reporting

Closely linked to the issue of finance is the obligations of parties to report on their progress towards the goals and targets of the GBF.

Parties do so through the submission of national reports.

Several parties at the talks pointed to a lack of timely funding for driving delays in their reporting, according to ENB.

A note released by the CBD Secretariat in December said that no parties had submitted their national reports yet; by the time of the SBI meetings, only the EU had. It further noted that just 58 parties had submitted their national biodiversity plans, which were initially meant to be published by COP16, in October 2024.

Linda Krueger, director of biodiversity and infrastructure policy at the environmental not-for-profit Nature Conservancy, told Carbon Brief that despite the sparse submissions, parties are “very focused on the national report preparation”. She added:

“Everybody wants to be able to show that we’re on the path and that there still is a pathway to getting to 2030 that’s positive and largely in the right direction.”

Watch, read, listen

NET LOSS: Nigeria’s marine life is being “threatened” by “ghost gear” – nets and other fishing equipment discarded in the ocean – said Dialogue Earth.

COMEBACK CAUSALITY: A Vox long-read looked at whether Costa Rica’s “payments for ecosystem services” programme helped the country turn a corner on deforestation.

HOMEGROWN GOALS: A Straits Times podcast discussed whether import-dependent Singapore can afford to shelve its goal to produce 30% of its food locally by 2030.

‘RUSTING’ RIVERS: The Financial Times took a closer look at a “strange new force blighting the [Arctic] landscape”: rivers turning rust-orange due to global warming.

New science

  • Lakes in the Congo Basin’s peatlands are releasing carbon that is thousands of years old | Nature Geoscience
  • Natural non-forest ecosystems – such as grasslands and marshlands – were converted for agriculture at four times the rate of land with tree cover between 2005 and 2020 | Proceedings of the National Academy of Sciences
  • Around one-quarter of global tree-cover loss over 2001-22 was driven by cropland expansion, pastures and forest plantations for commodity production | Nature Food

In the diary

Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz.
Please send tips and feedback to cropped@carbonbrief.org

The post Cropped 25 February 2026: Food inflation strikes | El Niño looms | Biodiversity talks stagnate appeared first on Carbon Brief.

Cropped 25 February 2026: Food inflation strikes | El Niño looms | Biodiversity talks stagnate

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Dangerous heat for Tour de France riders only a ‘question of time’

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Rising temperatures across France since the mid-1970s is putting Tour de France competitors at “high risk”, according to new research.

The study, published in Scientific Reports, uses 50 years of climate data to calculate the potential heat stress that athletes have been exposed to across a dozen different locations during the world-famous cycling race.

The researchers find that both the severity and frequency of high-heat-stress events have increased across France over recent decades.

But, despite record-setting heatwaves in France, the heat-stress threshold for safe competition has rarely been breached in any particular city on the day the Tour passed through.

(This threshold was set out by cycling’s international governing body in 2024.)

However, the researchers add it is “only a question of time” until this occurs as average temperatures in France continue to rise.

The lead author of the study tells Carbon Brief that, while the race organisers have been fortunate to avoid major heat stress on race days so far, it will be “harder and harder to be lucky” as extreme heat becomes more common.

‘Iconic’

The Tour de France is one of the world’s most storied cycling races and the oldest of Europe’s three major multi-week cycling competitions, or Grand Tours.

Riders cover around 3,500 kilometres (km) of distance and gain up to nearly 55km of altitude over 21 stages, with only two or three rest days throughout the gruelling race.

The researchers selected the Tour de France because it is the “iconic bike race. It is the bike race of bike races,” says Dr Ivana Cvijanovic, a climate scientist at the French National Research Institute for Sustainable Development, who led the new work.

Heat has become a growing problem for the competition in recent years.

In 2022, Alexis Vuillermoz, a French competitor, collapsed at the finish line of the Tour’s ninth stage, leaving in an ambulance and subsequently pulling out of the race entirely.

Two years later, British cyclist Sir Mark Cavendish vomited on his bike during the first stage of the race after struggling with the 36C heat.

The Tour also makes a good case study because it is almost entirely held during the month of July and, while the route itself changes, there are many cities and stages that are repeated from year to year, Cvijanovic adds.

‘Have to be lucky’

The study focuses on the 50-year span between 1974 and 2023.

The researchers select six locations across the country that have commonly hosted the Tour, from the mountain pass of Col du Tourmalet, in the French Pyrenees, to the city of Paris – where the race finishes, along the Champs-Élysées.

These sites represent a broad range of climatic zones: Alpe d’ Huez, Bourdeaux, Col du Tourmalet, Nîmes, Paris and Toulouse.

For each location, they use meteorological reanalysis data from ERA5 and radiant temperature data from ERA5-HEAT to calculate the “wet-bulb globe temperature” (WBGT) for multiple times of day across the month of July each year.

WBGT is a heat-stress index that takes into account temperature, humidity, wind speed and direct sunlight.

Although there is “no exact scientific consensus” on the best heat-stress index to use, WBGT is “one of the rare indicators that has been originally developed based on the actual human response to heat”, Cvijanovic explains.

It is also the one that the International Cycling Union (UCI) – the world governing body for sport cycling – uses to assess risk. A WBGT of 28C or higher is classified as “high risk” by the group.

WBGT is the “gold standard” for assessing heat stress, says Dr Jessica Murfree, director of the ACCESS Research Laboratory and assistant professor at the University of North Carolina at Chapel Hill.

Murfree, who was not involved in the new study, adds that the researchers are “doing the right things by conducting their science in alignment with the business practices that are already happening”.

The researchers find that across the 50-year time period, WBGT has been increasing across the entire country – albeit, at different rates. In the north-west of the country, WBGT has increased at an average rate of 0.1C per decade, while in the southern and eastern parts of the country, it has increased by more than 0.5C per decade.

The maps below show the maximum July WBGT for each decade of the analysis (rows) and for hourly increments of the late afternoon (columns). Lower temperatures are shown in lighter greens and yellows, while higher temperatures are shown in darker reds and purples.

Six Tour de France locations analysed in the study are shown as triangles on the maps (clockwise from top): Paris, Alpe d’ Huez, Nîmes, Toulouse, Col du Tourmalet and Bordeaux.

The maps show that the maximum WBGT temperature in the afternoon has surpassed 28C over almost the entire country in the last decade. The notable exceptions to this are the mountainous regions of the Alps and the Pyrenees.

Maximum WBGT across France for the month of July from 1974-2023. Rows show the values for each decade and columns show the hourly values for 3:00pm, 4:00pm, 5:00pm and 6:00pm. Lower temperatures are shown in lighter greens and yellows, while higher temperatures are shown in darker reds and purples. Triangles indicate the six Tour de France locations analysed in the study. Source: Cvijanovic et al. (2026)

The researchers also find that most of the country has crossed the 28C WBGT threshold – which they describe as “dangerous heat levels” – on at least one July day over the past decade. However, by looking at the WBGT on the day the Tour passed through any of these six locations, they find that the threshold has rarely been breached during the race itself.

For example, the research notes that, since 1974, Paris has seen a WBGT of 28C five times at 3pm in July – but that these events have “so far” not coincided with the cycling race.

The study states that it is “fortunate” that the Tour has so far avoided the worst of the heat-stress.

Cvijanovic says the organisers and competitors have been “lucky” to date. She adds:

“It has worked really well for them so far. But as the frequency of these [extreme heat] events is increasing, it will be harder and harder to be lucky.”

Dr Madeleine Orr, an assistant professor of sport ecology at the University of Toronto who was not involved in the study, tells Carbon Brief that the paper was “really well done”, noting that its “methods are good [and its] approach was sound”. She adds:

“[The Tour has] had athletes complain about [the heat]. They’ve had athletes collapse – and still those aren’t the worst conditions. I think that that says a lot about what we consider safe. They’ve still been lucky to not see what unsafe looks like, despite [the heat] having already had impacts.”

Heat safety protocols

In 2024, the UCI set out its first-ever high temperature protocol – a set of guidelines for race organisers to assess athletes’ risk of heat stress.

The assessment places the potential risk into one of five categories based on the WBGT, ranging from very low to high risk.

The protocol then sets out suggested actions to take in the event of extreme heat, ranging from having athletes complete their warm-ups using ice vests and cold towels to increasing the number of support vehicles providing water and ice.

If the WBGT climbs above the 28C mark, the protocol suggests that organisers modify the start time of the stage, adapt the course to remove particularly hazardous sections – or even cancel the race entirely.

However, Orr notes that many other parts of the race, such as spectator comfort and equipment functioning, may have lower temperatures thresholds that are not accounted for in the protocol, but should also be considered.

Murfree points out that the study’s findings – and the heat protocol itself – are “really focused on adaptation, rather than mitigation”. While this is “to be expected”, she tells Carbon Brief:

“Moving to earlier start times or adjusting the route specifically to avoid these locations that score higher in heat stress doesn’t stop the heat stress. These aren’t climate preventative measures. That, I think, would be a much more difficult conversation to have in the research because of the Tour de France’s intimate relationship with fossil-fuel companies.”

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DeBriefed 20 February 2026: EU’s ‘3C’ warning | Endangerment repeal’s impact on US emissions | ‘Tree invasion’ fuelled South America’s fires

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Welcome to Carbon Brief’s DeBriefed. 
An essential guide to the week’s key developments relating to climate change.

This week

Preparing for 3C

NEW ALERT: The EU’s climate advisory board urged countries to prepare for 3C of global warming, reported the Guardian. The outlet quoted Maarten van Aalst, a member of the advisory board, saying that adapting to this future is a “daunting task, but, at the same time, quite a doable task”. The board recommended the creation of “climate risk assessments and investments in protective measures”.

‘INSUFFICIENT’ ACTION: EFE Verde added that the advisory board said that the EU’s adaptation efforts were so far “insufficient, fragmented and reactive” and “belated”. Climate impacts are expected to weaken the bloc’s productivity, put pressure on public budgets and increase security risks, it added.

UNDERWATER: Meanwhile, France faced “unprecedented” flooding this week, reported Le Monde. The flooding has inundated houses, streets and fields and forced the evacuation of around 2,000 people, according to the outlet. The Guardian quoted Monique Barbut, minister for the ecological transition, saying: “People who follow climate issues have been warning us for a long time that events like this will happen more often…In fact, tomorrow has arrived.”

IEA ‘erases’ climate

MISSING PRIORITY: The US has “succeeded” in removing climate change from the main priorities of the International Energy Agency (IEA) during a “tense ministerial meeting” in Paris, reported Politico. It noted that climate change is not listed among the agency’s priorities in the “chair’s summary” released at the end of the two-day summit.

US INTERVENTION: Bloomberg said the meeting marked the first time in nine years the IEA failed to release a communique setting out a unified position on issues – opting instead for the chair’s summary. This came after US energy secretary Chris Wright gave the organisation a one-year deadline to “scrap its support of goals to reduce energy emissions to net-zero” – or risk losing the US as a member, according to Reuters.

Around the world

  • ISLAND OBJECTION: The US is pressuring Vanuatu to withdraw a draft resolution supporting an International Court of Justice ruling on climate change, according to Al Jazeera.
  • GREENLAND HEAT: The Associated Press reported that Greenland’s capital Nuuk had its hottest January since records began 109 years ago.
  • CHINA PRIORITIES: China’s Energy Administration set out its five energy priorities for 2026-2030, including developing a renewable energy plan, said International Energy Net.
  • AMAZON REPRIEVE: Deforestation in the Brazilian Amazon has continued to fall into early 2026, extending a downward trend, according to the latest satellite data covered by Mongabay.
  • GEZANI DESTRUCTION: Reuters reported the aftermath of the Gezani cyclone, which ripped through Madagascar last week, leaving 59 dead and more than 16,000 displaced people.

20cm

The average rise in global sea levels since 1901, according to a Carbon Brief guest post on the challenges in projecting future rises.


Latest climate research

  • Wildfire smoke poses negative impacts on organisms and ecosystems, such as health impacts on air-breathing animals, changes in forests’ carbon storage and coral mortality | Global Ecology and Conservation
  • As climate change warms Antarctica throughout the century, the Weddell Sea could see the growth of species such as krill and fish and remain habitable for Emperor penguins | Nature Climate Change
  • About 97% of South American lakes have recorded “significant warming” over the past four decades and are expected to experience rising temperatures and more frequent heatwaves | Climatic Change

(For more, see Carbon Brief’s in-depth daily summaries of the top climate news stories on Monday, Tuesday, Wednesday, Thursday and Friday.)

Captured

US emissions, MtCO2e, under a “current policy” scenario in which the EPA removes key federal climate regulations

Repealing the US’s landmark “endangerment finding”, along with actions that rely on that finding, will slow the pace of US emissions cuts, according to Rhodium Group visualised by Carbon Brief. US president Donald Trump last week formally repealed the scientific finding that underpins federal regulations on greenhouse gas emissions, although the move is likely to face legal challenges. Data from the Rhodium Group, an independent research firm, shows that US emissions will drop more slowly without climate regulations. However, even with climate regulations, emissions are expected to drop much slower under Trump than under the previous Joe Biden administration, according to the analysis.

Spotlight

How a ‘tree invasion’ helped to fuel South America’s fires

This week, Carbon Brief explores how the “invasion” of non-native tree species helped to fan the flames of forest fires in Argentina and Chile earlier this year.

Since early January, Chile and Argentina have faced large-scale and deadly wildfires, including in Patagonia, which spans both countries.

These fires have been described as “some of the most significant and damaging in the region”, according to a World Weather Attribution (WWA) analysis covered by Carbon Brief.

In both countries, the fires destroyed vast areas of native forests and grasslands, displacing thousands of people. In Chile, the fires resulted in 23 deaths.

Firefighters spray water on homes in Vina del Mar, Chile.
Firefighters spray water on homes in Vina del Mar, Chile. Credit: Esteban Felix / Alamy Stock Photo

Multiple drivers contributed to the spread of the fires, including extended periods of high temperatures, low rainfall and abundant dry vegetation.

The WWA analysis concluded that human-caused climate change made these weather conditions at least three times more likely.

According to the researchers, another contributing factor was the invasion of non-native trees in the regions where the fires occurred.

The risk of non-native forests

In Argentina, the wildfires began on 6 January and persisted until the first week of February. They hit the city of Puerto Patriada and the Los Alerces and Lago Puelo national parks, in the Chubut province, as well as nearby regions.

In these areas, more than 45,000 hectares of native forests – such as Patagonian alerce tree, myrtle, coigüe and ñire – along with scrubland and grasslands, were consumed by the flames, according to the WWA study.

In Chile, forest fires occurred from 17 to 19 January in the Biobío, Ñuble and Araucanía regions.

The fires destroyed more than 40,000 hectares of forest and more than 20,000 hectares of non-native forest plantations, including eucalyptus and Monterey pine.

Dr Javier Grosfeld, a researcher at Argentina’s National Scientific and Technical Research Council (CONICET) in northern Patagonia, told Carbon Brief that these species, introduced to Patagonia for production purposes in the late 20th century, grow quickly and are highly flammable.

Because of this, their presence played a role in helping the fires to spread more quickly and grow larger.

However, that is no reason to “demonise” them, he stressed.

Forest management

For Grosfeld, the problem in northern Patagonia, Argentina, is a significant deficit in the management of forests and forest plantations.

This management should include pruning branches from their base and controlling the spread of non-native species, he added.

A similar situation is happening in Chile, where management of pine and eucalyptus plantations is not regulated. This means there are no “firebreaks” – gaps in vegetation – in place to prevent fire spread, Dr Gabriela Azócar, a researcher at the University of Chile’s Centre for Climate and Resilience Research (CR2), told Carbon Brief.

She noted that, although Mapuche Indigenous communities in central-south Chile are knowledgeable about native species and manage their forests, their insight and participation are not recognised in the country’s fire management and prevention policies.

Grosfeld stated:

“We are seeing the transformation of the Patagonian landscape from forest to scrubland in recent years. There is a lack of preventive forestry measures, as well as prevention and evacuation plans.”

Watch, read, listen

FUTURE FURNACE: A Guardian video explored the “unbearable experience of walking in a heatwave in the future”.

THE FUN SIDE: A Channel 4 News video covered a new wave of climate comedians who are using digital platforms such as TikTok to entertain and raise awareness.

ICE SECRETS: The BBC’s Climate Question podcast explored how scientists study ice cores to understand what the climate was like in ancient times and how to use them to inform climate projections.

Coming up

Pick of the jobs

DeBriefed is edited by Daisy Dunne. Please send any tips or feedback to debriefed@carbonbrief.org.

This is an online version of Carbon Brief’s weekly DeBriefed email newsletter. Subscribe for free here.

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