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
UN food insecurity report
HUNGER DECLINES: The prevalence of hunger dropped in most parts of the world in 2024, according to a new report covered by Carbon Brief – but rates are still rising in much of Africa and western Asia. The UN’s annual report on food security and nutrition found that around 673 million people experienced hunger in 2024. Other key findings were that the cost of a “healthy” diet increased in 2023 and 2024 and that food price inflation “significantly” outpaced general inflation over the past five years. The price inflation was mostly driven by global factors, but also by localised shocks such as “climate extremes” disrupting food production, the report said.
‘UNEVEN’ PROGRESS: Global progress on tackling hunger is “encouraging”, but “uneven”, the director-general of the UN Food and Agriculture Organization, Dr Qu Dongyu, said in a statement. The new report found that the entire population in Gaza faced “high levels of acute food insecurity” in 2024, alongside more than half of people in Sudan, South Sudan, Yemen and Haiti. Elsewhere, the UN World Food Programme said that hunger levels in Gaza are “catastrophic”, while Reuters reported warnings from a global hunger monitor that a “worst-case scenario of famine is unfolding” there. UN chief António Guterres told the UN Food Systems Summit Stocktake this week in Ethiopia: “We must never accept hunger as a weapon of war.”
‘CLIMATEFLATION’: Elsewhere, a thinktank report said the UK faces “climateflation” impacts that could “drive up food prices by more than a third by 2050”, the Guardian said. The Autonomy Institute said that “increasing numbers of heatwaves and droughts would imperil staple crops, disrupt supply chains and intensify inflationary pressures”, the outlet added. UK food price inflation increased in July for the sixth consecutive month, partly driven by “rising meat and tea prices”, BBC News reported. Carbon Brief mapped out the findings of a new study showing links between extreme weather and food price spikes around the world.
Africa’s clean-cooking and nature goals
‘UNREACHABLE GOAL’: Sub-Saharan Africa will not reach the UN 2030 goal of providing clean cooking for all, according to a report from the International Energy Agency (IEA). “Large gaps” in financing and infrastructure mean universal access by 2040 is “more realistic”, it continued. The number of Africans without access to clean cooking “has continued to grow” and is currently around 1 billion people, Climate Home News reported. The report stated that $37bn in investment is required to achieve universal access. In a statement, IEA’s executive director, Fatih Birol, said that lack of clean cooking “remains one of the great injustices in the world”.
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WILDLIFE BONDS: The Global Environment Facility (GEF) has planned a new wave of wildlife conservation bonds to provide up to $1.5bn to “help African countries” save endangered species and ecosystems, Reuters reported. The GEF’s head of programming told the newswire that the bonds, which provide low-cost funding in return for curbing poaching or other conservation measures, will be issued for every country in Africa. The bonds will help poorer countries receive funding without adding to government debt. While such bonds usually target “emblematic” species, the GEF hopes to use the bonds to cover entire ecosystems, such as wetlands, Reuters said.
CONGO’S BIOFUELS: Italian oil company Eni has closed one biofuels pilot project in the Republic of Congo, but two other such projects remain in an experimental phase, InfoNile reported. Eni previously signed a 50-year agreement with the Congolese government to develop the country’s agro-biofuel sector, with a plan to cover 150,000 hectares of agricultural land by 2030. However, local farmer Chris Nsimba told InfoNile that, although Eni has brought economic development to his district, the company has made “little contribution” to local food security.
‘DRAMATIC EXPANSION’: Tenders for oil development are now available across “more than half” of the Democratic Republic of the Congo, a new report from Earth Insight and other groups found. The government recently launched a licensing round for 55 oil blocks, the report said – a “dramatic expansion” which poses “major threats” to forests and protected areas. The oil blocks overlap with 8.6m hectares of “key biodiversity areas” and 66.8m hectares of intact tropical forests. This decision highlights “stark contradictions between the DRC’s fossil-fuel agenda and its stated commitments to biodiversity protection, climate action and community rights”, the report said.
Spotlight
‘Unprecedented’ marine heatwaves gripped the globe in 2023
This week, Carbon Brief covers a new study, published in Science, which found that 96% of the global ocean experienced a marine heatwave during 2023.
More than 95% of the world’s expanse of oceans experienced a marine heatwave – a period of abnormal ocean warming lasting at least five days – in 2023, according to new research.
The study, published in Science, used an ocean model that incorporates satellite and observational data to identify marine heatwave events and investigate the drivers of the unusual ocean heating.
It found that 2023 was an “unprecedented” year for marine heatwaves in terms of duration, extent and intensity of the events.
Many of the events had “immediate ecological and societal consequences”, the authors wrote.
‘Comprehensive investigation’
In 2023, marine heatwaves bleached corals in the Florida Keys, boosted the prevalence of a giant-clam-killing parasite in the Mediterranean and even intensified heatwaves on land during Europe’s “hellish” summer that year.
Using satellite data and an ocean model that incorporates different streams of data, the team of researchers “conducted a comprehensive investigation” of the global ocean’s state in 2023, they wrote. Together, the authors wrote, that year’s marine heatwaves had the “longest durations, widest extents and highest intensities on record”.
They found that the average duration of marine heatwaves in 2023 was 120 days, compared to an average duration of just under 36 days between 1982-2022. Spatially, the 2023 heatwaves covered 96% of the global ocean, compared to a historical average extent of around 74%.
Prof Regina Rodrigues, a physical oceanographer at Brazil’s Universidade Federal de Santa Catarina, told Carbon Brief that, while the science underlying the study is “sound”, the study itself “does not bring many new aspects”. Rodrigues, who was not involved in the new research, added:
“The results are not different from those of many previous studies, except for the analysis of these regions together and for the same year.”
Driving factors
The researchers identified four main “hotspots” of the ocean that had the highest marine heatwave “cumulative intensity”: the tropical eastern Pacific, the south-west Pacific, the north Pacific and the north Atlantic. (Cumulative intensity is a metric that accounts for both intensity and duration of a heatwave.)
The researchers then used the ocean model to investigate the underlying drivers of marine heatwaves in each hotspot.
For example, in the north Pacific, they found that a combination of low cloud cover – allowing more sunlight to reach and warm the ocean’s surface – and weak winds resulted in around 1C of average warming throughout the year. A lack of cloud cover also contributed significantly to the heatwaves in the north Atlantic and south-west Pacific, they wrote.
It is “no surprise at all” to find that marine heatwaves have increased in frequency, intensity, duration and extent, “given that the ocean absorbs 90% of the heat from manmade climate change”, Rodrigues told Carbon Brief.
She pointed to a Nature study published earlier this year that examined the global record sea-surface temperatures of 2023-24. That study concluded:
“Without a global warming trend, such an event would have been practically impossible.”
News and views
WETLANDS SUMMIT: More than 3,000 delegates met in Zimbabwe for the 15th conference of the Ramsar Convention (COP15) to discuss the future of the world’s wetlands. Opening the event, Zimbabwe’s president, Emmerson Mnangagwa, called for the implementation of “collaborative approaches” towards wetlands protection, Down To Earth reported. Several southern African countries officially launched the Southern Africa Ramsar Regional Initiative to promote wetland conservation and sustainable use across borders, EnviroNews Nigeria reported. Additionally, China Daily reported that nine more Chinese locations were awarded “wetland city accreditation” at the conference, which concludes this Thursday.
‘DEVASTATION BILL’: Politicians in Brazil approved a bill to ease environmental licensing, a move criticised as the country’s “most significant environmental setback in nearly 40 years”, Mongabay said. The so-called “devastation bill” includes rule changes which would allow projects to be approved “by simply filling out an online form”, the outlet reported. It would also create a “special environmental licence” for “strategic” projects, “such as oil exploration on the Amazon coast”. Mongabay noted that President Luiz Inácio Lula da Silva can block or enact the bill, but “congress would likely overturn a veto”. It added: ”The law is bound to be challenged in the Supreme Court.”
SEABED STRIFE: Members of the International Seabed Authority (ISA) condemned the move earlier this year by a deep-sea mining company to “bypass the authority’s protocols by applying for a permit to mine in international waters under US law”, Inside Climate News reported. Oceanographic said that the ISA has “launched an official investigation” into contracting companies “over action taken to circumvent” existing protocols. The outlet said the decision was a “critical step in protecting the deep sea”. However, delegates at the recently concluded ISA meeting once again “failed” to reach an agreement on whether or not to allow seabed mining to proceed in international waters, reported Common Dreams.
FARMER FUNDS: The EU’s new long-term budget proposal featured cuts to agricultural spending, but the European Commission “insists” farmers will not be impacted, Euronews reported. The proposal outlined plans to combine agricultural subsidies and regional development funds into one “mega-fund worth €865bn”, the outlet said. Politico reported that the proposed changes mean “biodiversity goals have no earmarked funding at all – and will have to compete with the EU’s other environmental aims, including climate change, water security, the circular economy and pollution”.
‘TOXIC’ ALGAE: A toxic algal bloom along South Australia’s coastline has shown “no sign of abating” four months in, after killing sharks, rays, fish, dolphins and seals, the Sydney Morning Herald reported. The algae grew and spread due to a marine heatwave in September 2024, which caused ocean temperatures to be 2.5C warmer than usual. Marine ecologist Dr Scott Bennet told CNN: “This is symptomatic of climate-driven impacts that we’re seeing across Australia due to climate change.” Meanwhile, Reuters reported on a “revolution” in farm management that has boosted Australia’s wheat production “despite hotter, drier conditions”.
Watch, read, listen
CLOUD COVER: The New York Times profiled the scientists attempting to save the Great Barrier Reef by increasing cloud cover to cool the Pacific Ocean.
SYCAMORE SENTENCE: In Bloomberg, Josie Glausiusz argued that prosecuting the men who felled the Sycamore Gap tree in northern England in 2023 “mean[s] little” without stronger action to protect the natural world.
DECLINING SUPPLY: The Guardian visualised how Donald Trump’s “assault” on immigrants in the US could affect the country’s food supplies.
AN ICONIC TREE: Mongabay explored whether the Joshua Tree – a yucca plant native to the south-western US – can survive in the face of increasing drought, fires and development.
New science
- A Nature Communications study found that lands managed by Afro-descendant communities in Brazil, Colombia, Ecuador and Suriname experience up to 55% less deforestation than lands managed by others. The study highlighted the adaptation of African knowledge, the authors said, calling for a greater inclusion of Afro-descendants in environmental decision-making.
- Fewer than 10% of predicted “hotspots” of a type of fungi around the world are currently contained in protected areas, according to a Nature study. The findings can benefit conservation, monitoring and restoration of the “largely hidden component of Earth’s underground ecosystems”, the study authors wrote.
- New research, published in Science Advances, found that the prioritisation of creating “biodiversity-friendly landscapes” through conservation activities may actually accelerate biodiversity loss by improving conditions for invasive alien species. The authors called for a “shift” towards “landscape-wide strategies to stop the ongoing decline of farmland biodiversity”.
In the diary
- 5-14 August: Fifth session of the Intergovernmental Negotiating Committee on plastic pollution (part two) | Geneva
- 9 August: UN international day of the world’s Indigenous peoples
- 13-15 August: African Union-AIP water investment summit 2025 | Cape Town, South Africa
Cropped is researched and written by Dr Giuliana Viglione, Aruna Chandrasekhar, Daisy Dunne, Orla Dwyer and Yanine Quiroz. Svetlana Onye also contributed to this issue. Please send tips and feedback to cropped@carbonbrief.org
The post Cropped 30 July 2025: ‘Unprecedented’ ocean heatwaves; ‘Uneven’ hunger progress; Brazil’s ‘devastation bill’ appeared first on Carbon Brief.
Climate Change
Trump Administration Abandons Fight Against Wind Energy as Clean Energy Output Surges
The clean energy sector is showing resilience despite challenges thrown at it by a hostile White House, a recent report found. A string of legal victories has further dampened the Trump administration’s efforts to halt wind and solar power.
The Trump administration has abandoned its effort to halt wind energy projects across the United States and dropped its challenge to the court ruling that tossed President Donald Trump’s order freezing federal permitting and leasing for wind projects. States that challenged the order hailed the development as one of the most significant legal victories against the Trump White House’s campaign against the energy transition.
Trump Administration Abandons Fight Against Wind Energy as Clean Energy Output Surges
Amid reports that the government could weaken the UK’s electric vehicle (EV) targets, Carbon Brief analysis reveals the nation’s EV drivers are saving more than £1,100 a year in fuel costs, compared with running a petrol car.
Battery EVs (BEVs) are roughly four times more efficient than combustion-engine cars, making them far cheaper to run – particularly since the Iran crisis caused a spike in fossil-fuel prices.
The savings from driving BEVs are also more than three times higher than for “plug-in” hybrids (PHEVs), which evidence shows are mostly driven with their combustion engines.
In total, the more than 2m BEVs, 1m PHEVs and 100,000 electric vans on UK roads are saving drivers around £3bn a year, Carbon Brief’s analysis shows, as illustrated in the figure below.
In addition, these EVs are avoiding the need for nearly 2.5bn litres of fuel and cutting carbon dioxide (CO2) emissions by nearly 7m tonnes each year.
Despite recent news that EVs are now cheaper to buy than petrol cars, as well as having far lower running costs, BBC News says the government is “set to water down” its EV sales targets.
The broadcaster explains that the current goal, under the UK’s “zero-emissions vehicle” (ZEV) mandate, is for 80% of new car sales to be BEVs by 2030.
It says that the government is set to consult on weakening this to between 50% and 70%, following “lobbying” by carmakers and trade unions.
According to the Sunday Times, prime minister Keir Starmer “is understood to have overruled the energy secretary [Ed Miliband] after sustained pressure from industry, the Unite union and Peter Kyle, the business secretary”.
The car industry has consistently claimed there is insufficient demand for BEVs to meet the targets under the ZEV mandate, yet the government says manufacturers have “over-complied” to date. Independent analysts say the industry is on track to continue beating the ZEV mandate goals.
The industry has been able to beat its targets by using a wide range of “flexibilities”, which were introduced after a previous round of lobbying. These allow carmarkers to meet part of their EV targets by selling more efficient combustion cars, such as hybrids and plug-in hybrids.
The ZEV mandate is the single-largest part of the government’s plans to meet its legally binding climate goals over the next decade.
The advisory Climate Change Committee (CCC) previously warned that the extra flexibilities would result in a larger number of hybrids being sold, at the expense of battery EVs.
When it consulted on the ZEV mandate in 2023, the then-Conservative government noted that PHEVs do not deliver the cost and CO2 savings they are advertised with.
It pointed to “dramatic” differences between the performance of PHEVs in test cycles and what they deliver under real-world conditions.
In practice, less than a third of miles driven in PHEVs are fuelled by electricity, with petrol making up the rest. As a result, cost and CO2 savings from BEVs are three times larger than for PHEVs.
The post Analysis: UK’s EV drivers are now saving £1,100 each a year – and £3bn in total appeared first on Carbon Brief.
Analysis: UK’s EV drivers are now saving £1,100 each a year – and £3bn in total
Civil society groups have called for an investigation into the first carbon credits approved under a new UN mechanism, alleging the project is linked to Myanmar’s military junta – which the UN says is guilty of human rights abuses – and has “massively” overstated its climate impact.
The programme, which aims to cut emissions by distributing efficient cookstoves across Myanmar, received approval to issue around 650,000 carbon credits from the Article 6.4 Supervisory Body in February, in a landmark moment for the Paris Agreement’s carbon market. Only two projects have been given the green light by the mechanism’s regulator so far.
But two reports published last week, led by the Global Forest Coalition and Brussels-based NGO Carbon Market Watch, raised serious concerns about the project’s implementation in conflict zones where civilians have faced airstrikes and mass displacement as well as its emission-reduction calculations.
Project continued after military coup
Myanmar has been ravaged by a brutal civil war since the country’s military overthrew the democratically elected government in a coup d’état in February 2021. The military regime has attacked civilian populations, persecuted ethnic minorities and committed widespread sexual violence, among other serious human rights violations, the UN Special Rapporteur on the situation of human rights in Myanmar said in April.
The cookstove programme started in 2018 under the previous UN-run carbon offsetting scheme – the Clean Development Mechanism (CDM) – as a partnership between Myanmar’s Ministry of Natural Resources and Environmental Conservation (MONREC) and the Climate Change Center (CCC), a South Korean NGO, with investment from private South Korean firms.
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European, island states seek clear future for global roadmap to cut fossil fuels
Some European, small island and other nations argue the forthcoming roadmap should be part of UN climate talks, while Russia has resisted this idea
The project continued operating after the coup. For most of the period between 2021 and 2022 in which the issued credits were generated, MONREC was led by Colonel Khin Maung Yi, who was sanctioned by the European Union in 2021 for supporting the military regime, the Global Forest Coalition report said.
CCC acknowledged engaging with government authorities after the coup but said this “should not be interpreted as political endorsement” of the junta. The South Korean NGO added that abandoning the programme when political circumstances changed “would not necessarily have been the most responsible outcome for the households involved”.
Conflict prevents on the ground verification
The Global Forest Coalition report raised particular concerns about the project’s implementation in Myanmar’s central Dry Zone, including Sagaing Region, an anti-junta resistance stronghold that has been most heavily affected by the conflict and routinely targeted by airstrikes and violent attacks. The region accounts for more than a third of Myanmar’s 3.8 million internally displaced people.
The NGOs said that, in addition to ethical concerns about carbon credits being produced by the military government in an area actively affected by its attacks, this raises questions over the ability to effectively verify the climate integrity of the projects.
Before carbon credits are issued, external auditors need to validate the claims made by project developers and confirm that the emission reductions claimed are correct. This process usually includes site visits to a representative sample of households to check how the improved cookstoves are being used.
But, because of the “volatile political situation” in Myanmar, the auditing team was not able to leave the capital Yangon and could only speak to project participants remotely via Zoom, project documents show.
“Due to ongoing armed conflict on the ground, the data currently used to justify carbon credit issuance in Sagaing by the Burmese military junta is unverifiable and highly likely fraudulent,” said Zaw Tuseng, founder and president of the Myanmar Policy Institute, which contributed to the report, in a written statement. “This demands an immediate suspension of credit transfers until a neutral, conflict-sensitive audit can be conducted.”
“Exceptional circumstances”
CCC told Climate Home News that, although it recognises that on-site verification is “generally preferable, particularly in complex operating environments”, the decision to opt for remote controls was not taken “as a discretionary shortcut, but as an approved alternative under exceptional circumstances”.
The South Korean NGO added that it reviewed the feasibility of the project at community level “on an ongoing basis” and it “did not identify conflict-related incidents that directly affected project implementation activities in participating communities during the monitoring period”.
A spokesperson for the UN climate change body told Climate Home News that, when site access is not possible, the UN carbon credit mechanism allows for “alternative verification approaches while still maintaining conservative assumptions and environmental integrity safeguards”. “These provisions ensure that crediting can only proceed where evidence is reliable,” they added.
Contested methodology
Carbon markets are seen as an important channel to raise money to help low-income communities in developing countries switch to less polluting cooking methods, both reducing CO2 emissions and improving air quality. But several cookstove offsetting projects have faced criticism from researchers and campaigners who argue that climate benefits are often exaggerated and weak monitoring can undermine claims of real emission reductions.
The project in Myanmar uses a contested methodology developed under the earlier Kyoto Protocol that was rejected last year by The Integrity Council for the Voluntary Carbon Market (ICVCM), a watchdog that issues quality labels to carbon credit types, because it found it “insufficiently rigorous”.
EU carbon credits could supercharge world’s clean cooking push, France says
After transitioning from the CDM to the new mechanism, the project was required to apply “more conservative” assumptions to calculate emission reductions, which resulted in 40% fewer credits being issued, according to the UN climate change body.
“The result is consistent with environmental integrity requirements and ensures that each credited tonne genuinely represents a tonne reduced and contributes to the goals of the Paris Agreement,” Mkhuthazi Steleki, the South African chair of the Article 6.4 Supervisory Body, which oversees the mechanism, said in February.
Too many credits issued
But Carbon Market Watch claimed in a second report last week that, despite the adjustment, the project is still likely to issue seven times more credits than its real climate impact justifies, comparing its calculations with values from peer-reviewed scientific literature.
The biggest driver of the credit inflation, the group said, is the failure to account for “stacking” – the widespread practice of households using multiple stoves at the same time, including more polluting ones the project does not monitor.
Peer-reviewed science considers a stacking rate of 68% a conservative assumption, but the methodology used by the Myanmar programme makes no allowance for it at all, the report said.
CCC disputed those findings. In a written response to Climate Home News, it said the project was developed under methodologies approved within the UN climate framework and that external recalculations by researchers are not “determinative of the level of crediting achieved”.
The credits are expected to be used primarily by major South Korean polluters to meet obligations under the country’s emissions trading system – a move that will also enable the government to count those units toward emissions reduction targets in its nationally determined contribution (NDC), the UN climate body told Climate Home News.
Myanmar will use the remaining credits to achieve in part the goals of its own national climate plan under the Paris Agreement.
“Over-crediting, at any magnitude, cannot be compatible with the climate ambition of a world striving to limit global warming to 1.5ºC,” said Isa Mulder, an expert at Carbon Market Watch.
The post UN’s first Paris Agreement carbon credits face human rights and climate concerns appeared first on Climate Home News.
UN’s first Paris Agreement carbon credits face human rights and climate concerns
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