We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.
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Key developments
Economic risks from nature loss
RISKY BUSINESS: The “undervaluing” of nature by businesses is fuelling its decline and putting the global economy at risk, according to a new report covered by Carbon Brief. The Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services (IPBES) “business and biodiversity” report “urg[ed] companies to act now or potentially face extinction themselves”, Reuters wrote.
BUSINESS ACTION: The report was agreed at an IPBES meeting in Manchester last week. Speaking to Carbon Brief at the meeting, IPBES chair, Dr David Obura, said the findings showed that “all sectors” of business “need to respond to biodiversity loss and minimise their impacts”. Bloomberg quoted Prof Stephen Polasky, co-chair of the report, as saying: “Too often, at present, what’s good for business is bad for nature and vice-versa.”
Tensions in deep-sea mining
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JAPAN’S TAKEOFF: Japan’s prime minister, Sanae Takaichi, announced on 2 February that the country became the first in the world to extract rare earths from the deep seabed after successful retrievals near Minamitori Island, in the central Pacific Ocean, according to Asia Financial. The country hailed the move as a “first step toward industrialisation of domestically produced rare earth” metals, Takaichi said.
URGENT CALL: On 5 February, the International Seabed Authority (ISA) secretary general, Leticia Reis de Carvalho, called on EU officials to “quickly agree on an international rule book on the extraction of critical minerals in international waters”, due to be finalised later this year, Euractiv reported. The bloc has supported a proposed moratorium on deep-sea mining. However, the US has “taken the opposite approach”, fast-tracking a single permit for exploration and exploitation of seabed resources, and “might be pushing the EU – and others” to follow suit, the outlet added.
CAUTIONARY COMMENT: In the Inter Press Service, the former president of the Seychelles and a Swiss philanthropist highlighted the important role of African leadership in global ocean governance. It called for a precautionary pause on deep-sea mining due to the potential harmful effects of this extractive activity on biodiversity, food security and the economy. They wrote: “The accelerating push for deep-sea mining activities also raises concerns about repeating historic patterns seen in other extractive sectors across Africa.”
News and views
- ARGENTINE AUSTERITY: The Argentinian government’s response to the worst wildfires to hit Patagonia “in decades” has been hindered by president Javier Milei’s “gutting” of the country’s fire-management agency, the Associated Press reported. Carbon Brief covered a new rapid-attribution analysis of the fires, which found that climate change made the hot, dry conditions that preceded the fires more than twice as likely.
- CRISIS IN SOMALIA: The Somali government has begun “emergency talks” to address the drought that is gripping much of the country, according to Shabelle Media. The outlet wrote that the “crisis has reached a critical stage” amid “worsening shortages of water, food and pasture threatening both human life and livestock”.
- FOOD PRICES FALL: The UN Food and Agriculture Organization’s “food price index” – a measure of the costs of key food commodities around the world – fell in January for the fifth month in a row. The fall was driven by decreases in the price of dairy, meat and sugar, which “more than offset” increasing prices of cereals and vegetable oil, according to the FAO.
- HIGH STANDARDS: The Greenhouse Gas Protocol launched a new standard for companies to measure emissions and carbon removals from land use and emerging technologies. BusinessGreen said that the standard is “expected to provide a boost to the expanding carbon removals and carbon credit sectors by providing an agreed measurement protocol”.
- RUNNING OUT OF TIME: Negotiators from the seven US states that share the Colorado River basin met in Washington DC ahead of a 14 February deadline for agreeing a joint plan for managing the basin’s reservoirs. The Colorado Sun wrote: “The next agreement will impact growing cities, massive agricultural industries, hydroelectric power supplies and endangered species for years to come.”
- CORAL COVER: Malaysia has lost around 20% of its coral reefs since 2022, “with reef conditions continuing to deteriorate nationwide”, the Star – a Malaysian online news outlet – reported. The ongoing decline has many drivers, it added, including a global bleaching event in 2024, pollution and unsustainable tourism and development.
Spotlight
Aftershocks of US exiting major nature-science body
This week, Carbon Brief reports on the impacts of the US withdrawal from the global nature-science panel, IPBES.
The Trump administration’s decision to withdraw the US from the world’s main expert panel that advises policymakers on biodiversity and ecosystem science “harms everybody, including themselves”.
That’s according to Dr David Obura, chair of the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, or IPBES.
IPBES is among the dozens of international organisations dealing with the fallout from the US government’s announcement last month.
The panel’s chief executive, Dr Luthando Dziba, told Carbon Brief that the exit impacts both the panel’s finances and the involvement of important scientists. He said:
“The US was one of the founding members of IPBES…A lot of US experts contribute to our assessments and they’ve led our assessments in various capacities. They’ve also served in various official bodies of the platform.”
Obura told Carbon Brief that “it’s very important to try and keep pushing through with the knowledge and keep doing the work that we’re doing”. He said he hopes the US will rejoin in future.
Carbon Brief attended the first IPBES meeting since Trump’s announcement, held last week in Manchester. At the meeting, countries finalised a new “business and biodiversity” report.
For the first time in the 14-year history of IPBES, there was no US government delegation present at the meeting, although some US scientists attended in other roles.
Cashflow impacts
Dziba is still waiting for official confirmation of the US withdrawal, but impacts were being felt even before last month’s announcement.
Budget information [pdf] from last October shows that the US contributed the most money to IPBES of any country in 2024 – around $1.2m. In 2025, when Trump took office, it sent $0, as of October.
Despite this, IPBES actually received around $1.2m extra funding from countries in 2025, compared to 2024, as other nations filled the gap.
The UK, for example, increased its contribution from around $367,000 in 2024 to more than $1.7m in 2025. The EU, which did not contribute in 2024 but tends to make multi-year payments, paid around $2.7m last year. These two payments made up the bulk of the increase in overall funding.
Wider effects of US exit
Dziba said IPBES is looking at other ways of boosting funds in future, but noted that lost income is not the only concern:
“For us, the withdrawal of the US is actually much larger than just the budgetary implications, because you can find somebody who can come in and increase the contribution and close that gap.
“The US has got thousands of leading experts in the fields where we undertake assessments. We know that some of them work for [the] government and maybe [for] those it will be more challenging for them to continue…But there are many other experts that we hope, in some way, will still be able to contribute to the work of the platform.”
One person trying to keep US scientists involved is Prof Pam McElwee, a professor of human ecology at Rutgers University. She told Carbon Brief that “there are still a tonne of American scientists and other civil society organisations that want to stand up”.
McElwee and others have looked at ways for US scientists to access funding to continue working with the Intergovernmental Panel on Climate Change, which the US has also withdrawn from. She said they will try and do the same at IPBES, adding:
“It’s basically a bottom-up initiative…to make the message clear that scientists in the US still support these institutions and we still are part of them.
“Climate science is what it is and we can’t deny or withdraw from it. So we’ll just keep trying to represent it as best we can.”
Watch, read, listen
UNDER THE SEA: An article in bioGraphic explored whether the skeletons of dead corals “help or hinder recovery” on bleached reefs.
MOSSY MOORS: BBC News covered how “extinct moss” is being reintroduced in some English moors in an effort to “create diverse habitats for wildlife”.
RIBBIT: Scientists are “racing” to map out Ecuador’s “unique biological heritage of more than 700 frog species”, reported Dialogue Earth.
MEAT COMEBACK: Grist examined the rise and fall of vegan fine dining.
New science
- Areas suitable for grazing animals could shrink by 36-50% by 2100 due to continued climate change, with areas of extreme poverty and political fragility experiencing the highest losses | Proceedings of the National Academy of Sciences
- The body condition of Svalbard polar bears increased after 2000, in a period of rapid loss of ice cover | Scientific Reports
- Studies projecting the possibility of reversing biodiversity loss are scarce and most do not account for additional drivers of loss, such as climate change, according to a meta-analysis of more than 55 papers | Science Advances
In the diary
- 9-12 February: Climate and cryosphere open science conference | Wellington, New Zealand
- 18 February: International conservation technology conference | Lima, Peru
- 22-27 February: American Geophysical Union’s ocean sciences meeting | Glasgow, UK
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 11 February 2026: Aftershocks of US withdrawals | Biodiversity and business risks | Deep-sea mining tensions appeared first on Carbon Brief.
Drought and heatwaves occurring together – known as “compound” events – have “surged” across the world since the early 2000s, a new study shows.
Compound drought and heat events (CDHEs) can have devastating effects, creating the ideal conditions for intense wildfires, such as Australia’s “Black Summer” of 2019-20 where bushfires burned 24m hectares and killed 33 people.
The research, published in Science Advances, finds that the increase in CDHEs is predominantly being driven by events that start with a heatwave.
The global area affected by such “heatwave-led” compound events has more than doubled between 1980-2001 and 2002-23, the study says.
The rapid increase in these events over the last 23 years cannot be explained solely by global warming, the authors note.
Since the late 1990s, feedbacks between the land and the atmosphere have become stronger, making heatwaves more likely to trigger drought conditions, they explain.
One of the study authors tells Carbon Brief that societies must pay greater attention to compound events, which can “cause severe impacts on ecosystems, agriculture and society”.
Compound events
CDHEs are extreme weather events where drought and heatwave conditions occur simultaneously – or shortly after each other – in the same region.
These events are often triggered by large-scale weather patterns, such as “blocking” highs, which can produce “prolonged” hot and dry conditions, according to the study.
Prof Sang-Wook Yeh is one of the study authors and a professor at the Ewha Womans University in South Korea. He tells Carbon Brief:
“When heatwaves and droughts occur together, the two hazards reinforce each other through land-atmosphere interactions. This amplifies surface heating and soil moisture deficits, making compound events more intense and damaging than single hazards.”
CDHEs can begin with either a heatwave or a drought.
The sequence of these extremes is important, the study says, as they have different drivers and impacts.
For example, in a CDHE where the heatwave was the precursor, increased direct sunshine causes more moisture loss from soils and plants, leading to a drought.
Conversely, in an event where the drought was the precursor, the lack of soil moisture means that less of the sun’s energy goes into evaporation and more goes into warming the Earth’s surface. This produces favourable conditions for heatwaves.
The study shows that the majority of CDHEs globally start out as a drought.
In recent years, there has been increasing focus on these events due to the devastating impact they have on agriculture, ecosystems and public health.
In Russia in the summer of 2010, a compound drought-heatwave event – and the associated wildfires – caused the death of nearly 55,000 people, the study notes.
The record-breaking Pacific north-west “heat dome” in 2021 triggered extreme drought conditions that caused “significant declines” in wheat yields, as well as in barley, canola and fruit production in British Columbia and Alberta, Canada, says the study.
Increasing events
To assess how CDHEs are changing, the researchers use daily reanalysis data to identify droughts and heatwaves events. (Reanalysis data combines past observations with climate models to create a historical climate record.) Then, using an algorithm, they analyse how these events overlap in both time and space.
The study covers the period from 1980 to 2023 and the world’s land surface, excluding polar regions where CDHEs are rare.
The research finds that the area of land affected by CDHEs has “increased substantially” since the early 2000s.
Heatwave-led events have been the main contributor to this increase, the study says, with their spatial extent rising 110% between 1980-2001 and 2002-23, compared to a 59% increase for drought-led events.
The map below shows the global distribution of CDHEs over 1980-2023. The charts show the percentage of the land surface affected by a heatwave-led CDHE (red) or a drought-led CDHE (yellow) in a given year (left) and relative increase in each CDHE type (right).
The study finds that CDHEs have occurred most frequently in northern South America, the southern US, eastern Europe, central Africa and south Asia.
Threshold passed
The authors explain that the increase in heatwave-led CDHEs is related to rising global temperatures, but that this does not tell the whole story.
In the earlier 22-year period of 1980-2001, the study finds that the spatial extent of heatwave-led CDHEs rises by 1.6% per 1C of global temperature rise. For the more-recent period of 2022-23, this increases “nearly eightfold” to 13.1%.
The change suggests that the rapid increase in the heatwave-led CDHEs occurred after the global average temperature “surpasse[d] a certain temperature threshold”, the paper says.
This threshold is an absolute global average temperature of 14.3C, the authors estimate (based on an 11-year average), which the world passed around the year 2000.
Investigating the recent surge in heatwave-leading CDHEs further, the researchers find a “regime shift” in land-atmosphere dynamics “toward a persistently intensified state after the late 1990s”.
In other words, the way that drier soils drive higher surface temperatures, and vice versa, is becoming stronger, resulting in more heatwave-led compound events.
Daily data
The research has some advantages over other previous studies, Yeh says. For instance, the new work uses daily estimations of CDHEs, compared to monthly data used in past research. This is “important for capturing the detailed occurrence” of these events, says Yeh.
He adds that another advantage of their study is that it distinguishes the sequence of droughts and heatwaves, which allows them to “better understand the differences” in the characteristics of CDHEs.
Dr Meryem Tanarhte is a climate scientist at the University Hassan II in Morocco, and Dr Ruth Cerezo Mota is a climatologist and a researcher at the National Autonomous University of Mexico. Both scientists, who were not involved in the study, agree that the daily estimations give a clearer picture of how CDHEs are changing.
Cerezo-Mota adds that another major contribution of the study is its global focus. She tells Carbon Brief that in some regions, such as Mexico and Africa, there is a lack of studies on CDHEs:
“Not because the events do not occur, but perhaps because [these regions] do not have all the data or the expertise to do so.”
However, she notes that the reanalysis data used by the study does have limitations with how it represents rainfall in some parts of the world.
Compound impacts
The study notes that if CDHEs continue to intensify – particularly events where heatwaves are the precursors – they could drive declining crop productivity, increased wildfire frequency and severe public health crises.
These impacts could be “much more rapid and severe as global warming continues”, Yeh tells Carbon Brief.
Tanarhte notes that these events can be forecasted up to 10 days ahead in many regions. Furthermore, she says, the strongest impacts can be prevented “through preparedness and adaptation”, including through “water management for agriculture, heatwave mitigation measures and wildfire mitigation”.
The study recommends reassessing current risk management strategies for these compound events. It also suggests incorporating the sequences of drought and heatwaves into compound event analysis frameworks “to enhance climate risk management”.
Cerezo-Mota says that it is clear that the world needs to be prepared for the increased occurrence of these events. She tells Carbon Brief:
“These [risk assessments and strategies] need to be carried out at the local level to understand the complexities of each region.”
The post Heatwaves driving recent ‘surge’ in compound drought and heat extremes appeared first on Carbon Brief.
Heatwaves driving recent ‘surge’ in compound drought and heat extremes
Greenhouse Gases
DeBriefed 6 March 2026: Iran energy crisis | China climate plan | Bristol’s ‘pioneering’ wind turbine
Welcome to Carbon Brief’s DeBriefed.
An essential guide to the week’s key developments relating to climate change.
This week
Energy crisis
ENERGY SPIKE: US-Israeli attacks on Iran and subsequent counterattacks across the Middle East have sent energy prices “soaring”, according to Reuters. The newswire reported that the region “accounts for just under a third of global oil production and almost a fifth of gas”. The Guardian noted that shipping traffic through the strait of Hormuz, which normally ferries 20% of the world’s oil, “all but ground to a halt”. The Financial Times reported that attacks by Iran on Middle East energy facilities – notably in Qatar – triggered the “biggest rise in gas prices since Russia’s full-scale invasion of Ukraine”.
‘RISK’ AND ‘BENEFITS’: Bloomberg reported on increases in diesel prices in Europe and the US, speculating that rising fuel costs could be “a risk for president Donald Trump”. US gas producers are “poised to benefit from the big disruption in global supply”, according to CNBC. Indian government sources told the Economic Times that Russia is prepared to “fulfil India’s energy demands”. China Daily quoted experts who said “China’s energy security remains fundamentally unshaken”, thanks to “emergency stockpiles and a wide array of import channels”.
‘ESSENTIAL’ RENEWABLES: Energy analysts said governments should cut their fossil-fuel reliance by investing in renewables, “rather than just seeking non-Gulf oil and gas suppliers”, reported Climate Home News. This message was echoed by UK business secretary Peter Kyle, who said “doubling down on renewables” was “essential” amid “regional instability”, according to the Daily Telegraph.
China’s climate plan
PEAK COAL?: China has set out its next “five-year plan” at the annual “two sessions” meeting of the National People’s Congress, including its climate strategy out to 2030, according to the Hong Kong-based South China Morning Post. The plan called for China to cut its carbon emissions per unit of gross domestic product (GDP) by 17% from 2026 to 2030, which “may allow for continued increase in emissions given the rate of GDP growth”, reported Reuters. The newswire added that the plan also had targets to reach peak coal in the next five years and replace 30m tonnes per year of coal with renewables.
ACTIVE YET PRUDENT: Bloomberg described the new plan as “cautious”, stating that it “frustrat[es] hopes for tighter policy that would drive the nation to peak carbon emissions well before president Xi Jinping’s 2030 deadline”. Carbon Brief has just published an in-depth analysis of the plan. China Daily reported that the strategy “highlights measures to promote the climate targets of peaking carbon dioxide emissions before 2030”, which China said it would work towards “actively yet prudently”.
Around the world
- EU RULES: The European Commission has proposed new “made in Europe” rules to support domestic low-carbon industries, “against fierce competition from China”, reported Agence France-Presse. Carbon Brief examined what it means for climate efforts.
- RECORD HEAT: The US National Oceanic and Atmospheric Administra