Welcome to Carbon Brief’s Cropped.
We handpick and explain the most important stories at the intersection of climate, land, food and nature over the past fortnight.
Key developments
Wildfires resurfaced
PANTANAL FIRES: Climate change made the wildfires that scorched the Pantanal wetlands earlier this summer 40% more intense, according to a new rapid attribution study covered by Carbon Brief. Around 2,500 fires occurred in Brazil’s Pantanal wetlands in June 2024. The World Weather Attribution service found that “the month was the hottest, driest and windiest year in the 45-year record”, creating conditions that were highly conducive to wildfires. Separately, Reuters reported on a new study that found that fires, logging and “other forms of human-caused degradation, along with natural disturbances to the Amazon ecosystem, are releasing more climate-warming CO2 than clear-cut deforestation”.
EXTENDED IMPACT: In North America, 90 large fires burned nearly 4.5m acres across the US during the first days of August, the New York Times reported. The “devastating wildfires” spread ash and smoke “over large swathes of the continent…destroyed homes and charred through thousands of acres of farms and forests”, the outlet added. Particularly dry, hot weather affected the western US and caused four wildfires across Colorado, leaving one person dead and forcing hundreds of people to evacuate, according to the Washington Post.
BEYOND AMERICAN CONTINENT: On the other side of the ocean, wildfires swept Athens, where thousands of residents were evacuated as fires crossed into suburbs and flames rose up to 25 metres, BBC News reported. According to the outlet, June and July were “the hottest on record” for the European country, while Greece’s civil protection minister has “warned that extremely dangerous weather would continue”. Meanwhile, Algeria’s north-eastern Kabylie region has experienced blazes since last Friday, Agence France-Presse reported. The newswire added that homes, olive groves, hen coops and beehives were engulfed by flames. Most of the wildfires are now under control, a civil defence official said.
Offsets up in smoke
UP IN SMOKE: The Park fire – one of the “largest wildfires in California’s history” and is still blazing – destroyed around 45,000 acres of trees enrolled in the state’s carbon-offsetting programme, the Financial Times reported. According to analysis by the not-for-profit research firm Carbon Plan, cited in the story, buyers of credits included oil refining, power and lumber companies. The story also pointed to an unsold “buffer pool” of credits meant to replace losses to “credited trees” from wildfires, drought or pests. California authorities told the FT that the buffer was “quite sound”. But Carbon Plan scientist Dr Grayson Badgley said that the pool needed updating to “reflect the realities of fire risk” and that the state “should stop approving carbon credit projects in risky wildfire regions”.
STOLEN CREDIT: Brazil’s environment minister, Marina Silva, warned international buyers of carbon credits to be “vigilant” after police uncovered “allegedly fraudulent emissions-offset schemes on stolen land in the Amazon”, the Financial Times wrote. Silva said the issue was a “serious problem” and “could damage the credibility [and] integrity of this mechanism”, the story added. Separately, Bloomberg reported that a key oversight body is set to review carbon offsets generated from forestry projects “in the coming months”, after it found methods to assess renewable energy credits to be “insufficiently rigorous”.
FOREST THINNING: Meanwhile, scientists writing in the Conversation cautioned against the Australian forest industry’s plans “to remove trees from native forests, potentially including national parks, and claim carbon credits in the process”. They pointed to Forestry Australia’s “problematic proposal” that “purports to reduce environmental impacts, but still produce wood products”. It does so through a method known as “adaptive harvesting”, which involves forest thinning, or practices such as delaying logging until trees are older. The group’s acting president, William Jackson, responded to the piece, saying that forest thinning would be “conducted for ecological reasons, cultural values or fire management or other reasons” and that he “disagrees with the view that thinning makes forests more fire prone”.
Spotlight
Joshua trees are flowering more frequently due to climate change
This week, Carbon Brief explores a new study, published in Ecology Letters, looking at the impacts of climate change on the Joshua tree, a type of yucca plant that is native to California and other parts of the south-western US.
Climate change is causing Joshua trees – the iconic plant that dots the landscape of the south-western US – to flower more frequently, a new study has found.
Despite the plant’s importance as a keystone species in the Mojave Desert and other parts of the south-west, many studies of climate impacts on Joshua trees lack nuance – in part due to the resources needed to collect field data.
Using a machine-learning model trained on crowdsourced images from the biodiversity platform iNaturalist, researchers were able to examine the impacts of climate change on the trees since 1900.
The lead author of the study told Carbon Brief that “there’s a lot of potential” to use the team’s newly developed methods to study the impacts of climate change on other flora.
Beyond binary
Much of the existing work looking at climate change impacts on Joshua trees is based on so-called “distribution models”, Prof Jeremy Yoder, an evolutionary biologist at California State University, Northridge, told Carbon Brief.
These models are based on identifying the climatic factors that are closely associated with the presence or absence of a particular species. Then, he explained, researchers can “take a future climate projection and ask where conditions will look like places where we know Joshua trees are today”.
In the new study, instead of simply looking at the distribution of the species, the researchers modelled the flowering of the trees – using specific weather data to draw connections between a flowering year and the climatic conditions leading up to it.
Using this model, they were then able to “hindcast” previous instances of Joshua tree flowering. They matched up their predicted flowering with historical botanical collections, field notes and even newspaper reports and found that they “line up pretty well”.
By taking the hindcast as a whole, the team could then explore how climate change has affected Joshua tree flowering over the past century and a quarter. Yoder told Carbon Brief:
“That’s concretely new information that we did not have about Joshua trees before.”
Flowering frequency
Overall, the researchers found a “slightly rising frequency” in the flowering of Joshua trees over the past 123 years. The flowering was most closely related to year-to-year variability in rainfall.
But increased flowering on its own might not necessarily be beneficial to the trees. “Flowering is just the first step in regenerating Joshua tree woodland,” Yoder said – meaning that more frequent blooms will not necessarily result in a growing population. While a flowering Joshua tree may produce thousands of seeds in a year, those seeds will result in just a few seedlings.
Then, it’s “an even smaller subset of seedlings that start to get to something closer to an established tree over a couple of years”, he said. And some of the conditions that seem to be influencing the flowering frequency – such as contrasts in year-to-year rainfall – are “probably not good for seedling survival”.
Beyond the scientific result, Yoder is excited by the potential for further applications of the hindcast modelling. He told Carbon Brief:
“Hopefully this is something that folks can use to start to get that richer view of what climate change is doing to natural populations.”
News and views
SKYROCKETING: Researchers have warned that the current H5N1 bird flu outbreak “could reach Australia this spring”, according to the Guardian. Australia has thus far remained bird-flu-free since the strain emerged in 2020. Although some researchers think the island’s virus risk “is low” due to the country being outside the “flyways of migratory ducks and geese, [which are] the main hosts of bird flu viruses over long distances”, others say “there is still a risk, and we need to be ready for it”. Mongabay also covered the bird flu transmission, highlighting that it is the “fastest-spreading, largest-ever outbreak” and has infected “hundreds of species pole-to-pole”. The outlet reported that the virus has spread to at least 485 bird species and 48 mammals and that “the risk to humans [is] rising”.
WHEAT STOCKS: Iraq’s wheat harvest surged more than 20% this year due to a combination of “extraordinary” rainfall and improved irrigation, Bloomberg reported. The outlet added that the harvest “marked a second year of self-sufficiency in the grain” for Iraq. Meanwhile, France is facing “one of the worst harvests in the last 40 years”, according to the French agriculture ministry, as reported by Politico. The country – which is the EU’s largest producer of soft wheat – “experienced a very wet planting season last year and not enough sun in the spring and early summer”. Farmers’ unions in France are seeking governmental assistance, the outlet said.
SEABED SHAKE-UP: Leticia Carvalho was elected the new head of the International Seabed Authority, Australia’s ABC News reported, where she “will be the first woman, first oceanographer and the first representative from Latin America to serve in this position”. Carvalho unseated the incumbent secretary-general, Michael Lodge, who has presided over the ISA since 2016. The New York Times noted that Lodge “has been a polarising figure at the seabed authority” and has faced accusations that he “was too closely aligned with the mining industry”. Prior to the election, Foreign Policy Magazine profiled Carvalho and her proposed approach to the ISA.
COCA PROBLEM: Colombia’s programme for substituting coca crops in favour of legal alternatives “is failing to achieve its goals due to design, implementation and security issues”, Mongabay reported. The outlet pointed out that coca leaf growers and pickers “haven’t received the agreed technical or financial support from the government”, resulting in lower incomes and forcing them to engage in other activities, such as illegal mining, to survive. The programme was created one year after the 2016 peace deal between Colombia’s government and the Revolutionary Armed Forces of Colombia (FARC), the outlet said. It added that a recent UN assessment of the programme found that coca production has actually increased 13% between December 2021 and December 2022.
NEW SEEDS ON THE BLOCK: On 9 August, Indian prime minister Narendra Modi launched 109 “high-yielding, climate-resilient” seed varieties at three experimental plots in New Delhi, Livemint reported. Among these was a rice variety “ideal for coastal saline areas” and a wheat variety “tolerant to terminal heat”, it added. Another Livemint long-read looked at the impact of climate change on tur dal – India’s second most consumed legume – finding that dal prices soared “by a staggering 60% between July 2022 and July 2024”. Meanwhile, an Economic Times analysis found that food inflation in India “has remained above 6% since July 2023, driven mostly by vegetables”. Overall inflation climbed to 5.1% in June this year with “most of the pressure…coming from rising food prices”, Bloomberg reported.
Watch, read, listen
‘DEFORESTATION MAFIA’: Inside Climate News delved into the legal battle to save Argentina’s Gran Chaco forest from corruption and deforestation.
‘THINKING LIKE BEARS’: NPR’s Short Wave podcast addressed what scientists are doing to conserve grizzly bears in the US – including “thinking like bears”.
VULNERABLE SCIENTISTS: A Nature career feature explored the mental health issues that rainforest scientists experience while watching “the ongoing destruction of the forest[s]”.
REASONS TO WINE: In his Bloomberg column, David Fickling wrote about how a warming climate “could play havoc” with grape vines and imperil future wine production.
New science
Summer monsoon drying accelerates India’s groundwater depletion under climate change
Earth’s Future
New research found that changes in India’s summer monsoon, alongside warmer winters and increased demand, are driving “rapid depletion” of groundwater. Using satellite data, on-the-ground observations and a hydrological model, scientists observed that India’s groundwater declined substantially over 2002-21. They attributed the reduction in groundwater to “reduced groundwater recharge and enhanced pumping to meet irrigation demands” amid lower rainfall. They concluded: “Groundwater sustainability measures including reducing groundwater abstraction and enhancing the groundwater recharge during the summer monsoon seasons are needed to ensure future agricultural production.”
Highest ocean heat in four centuries places Great Barrier Reef in danger
Nature
Heat extremes in the sea containing the Great Barrier Reef over January-March in 2024, 2017 and 2020 were the “warmest in 400 years”, according to a new study. Using a multi-century reconstruction of sea surface temperature data on the Coral Sea on the Australian coast along with climate model analysis, the researchers highlighted the “existential threat” that human-caused climate change poses to the Great Barrier Reef ecosystem. Without “urgent intervention”, the researchers wrote that the reef risks “experiencing temperatures conducive to near-annual coral bleaching” in future. They noted: “In the absence of rapid, coordinated and ambitious global action to combat climate change, we will likely be witness to the demise of one of Earth’s great natural wonders.”
Global Change Biology
The 2022 marine heatwave in Fiordland, New Zealand – the “strongest and longest” to occur there – killed more than half of the marine sponges living there, a new study revealed. The researchers analysed the impacts of the marine heatwave – which had a maximum temperature of 4.4C above average and lasted for 259 days – on a particular photosynthetic sponge. They suggested that what killed marine sponges was not bleaching – which affected more than 90% of the sponges – but the high temperatures killing their tissues directly. The research concluded that the remaining sponges “had mostly recovered from earlier bleaching”, probably due to a microbial community shift as an “adaptive response”.
In the diary
- 12-16 August: Meeting of the working group on benefit-sharing from digital sequence information | Montreal
- 26-30 August: Pacific Islands Forum Leaders Meeting | Tonga
- 28-29 August: EU Dialogue on national biodiversity strategies and action plans | Brussels
This is an online version of Carbon Brief’s fortnightly Cropped email newsletter. Subscribe for free here.
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 14 August 2024: Worldwide wildfires; Offsets up in smoke; Joshua tree spotting appeared first on Carbon Brief.
Cropped 14 August 2024: Worldwide wildfires; Offsets up in smoke; Joshua tree spotting
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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