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.
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Key developments
Climate and conflict imperilling food security
HUNGER CRISIS: More than four million people in Somalia – one-quarter of the country’s population – are at risk of experiencing “crisis-level hunger” by the end of the year, according to the World Food Programme (WFP). The east African country is facing “floods that have uprooted hundreds of thousands of people” after a “historic drought” earlier in the year killed livestock and ruined crops and pastureland, Reuters reported. A WFP spokesperson told the newswire: “This bombardment of climate shocks, from drought to floods, will prolong the hunger crisis in Somalia.” Meanwhile, Palestine is facing an “agricultural crisis”, with “farmlands being burned, farmers/fishermen being attacked and inaccessibility to food and water infrastructure” amidst the ongoing war with Israel, the Times of India wrote.
WHEAT WORRIES: Imports of wheat are “on track to hit record levels” in China this year following heavy rains damaging the country’s domestic supply, Bloomberg reported. Wheat prices on the international market hit a three-year low at the end of September. The outlet noted that China’s spending spree “adds an element of uncertainty to supply chains that have become increasingly vulnerable to war and protectionist trade policies”. In a separate piece, Bloomberg explored India’s food systems, writing that “farm plots are shrinking, infrastructure remains rickety and climate change is only bringing more disruption”. Governmental policies are “rapidly becoming a threat to food security in the world’s most populous country, upping the stakes for [Narendra] Modi’s ruling party”, Bloomberg added.
TECHNO-FIXES: The UK, Somalia and COP28 hosts UAE convened a one-day Global Food Security Summit in London on Monday. Ahead of the summit, aid organisations and other groups “raised the alarm” about the meeting’s technology-focused agenda, which they alleged was “potentially sidelining key issues, such as early action to stamp out hunger, fair trade, and local control of food systems”, according to Devex. “No new financial commitments” were expected to be made at the summit, the outlet continued. During the meeting, UK prime minister Rishi Sunak announced an initiative to “bring together work on developing climate-resilient crops”, Reuters reported. The initiative will fall under the auspices of CGIAR. The UK government also released a white paper on international development, laying out its intention to “work in partnership with countries to tackle extreme poverty and climate change, rather than just providing aid money”, Reuters said.
Dust, ice, extinctions and inequality
LAND LOSS: The world is losing nearly one million square kilometres of productive agricultural lands each year due to sand and dust storms amplified by human activities, Reuters reported. According to a report from the United Nations Convention to Combat Desertification (UNCCD), at least one-quarter of these storms are a result of human activities, such as mining and overgrazing. Ibrahim Thiaw, UNCCD executive secretary, told Reuters that topsoil losses are affecting food supplies, migration and navigation, and creating security risks.
ICE MELT: Carbon Brief covered the International Cryosphere Climate Initiative’s 2023 “state of the crysophere” report. The report revealed that, if the planet were to reach 2C of warming, ice sheets and glaciers would experience “extensive, long-term [and] essentially irreversible” losses. Sustained warming of 2C could produce “potentially rapid, irreversible sea level rise from the Earth’s ice sheets” and lead polar oceans to thaw and undergo “essentially permanent corrosive ocean acidification”, Carbon Brief wrote.
SPECIES DECLINE: Nearly 2m species around the world are at risk of extinction, doubling the number previously estimated by the Intergovernmental Science-Policy Platform on Biodiversity and Ecosystem Services, according to a study reported on by the Guardian. The increased estimate is largely a result of better data availability about insect populations, the newspaper added. The study also revealed that almost one-quarter of invertebrates, which play a vital role in pollination, are at risk of extinction. Insects also provide other services to human populations, such as healthier soils and pest control, the Guardian said. A different study found that in the UK and Ireland, almost half of seabirds species have declined over the past 20 years, Discover Wildlife wrote. Some of the species that have undergone declines are the common gull and the puffins, the Irish Times added.
UNEQUAL FARMING: Women who work in the agricultural sector in Africa and Asia are more affected than men by climate risks, including droughts, floods and the reduction of crop-growing season, wrote the Indian environmental website DownToEarth. The article cited a study published in Frontiers in Sustainable Food Systems, which analysed the climate risk for women farmers from 87 countries across those two continents and Latin America. The study pointed out that women are less likely to adapt to climate change than men because of gender inequalities and unequal access to resources. Dr Els Lecoutere, the first author of the study, told Down To Earth that their research may encourage discussions over the need to finance a loss-and-damage fund at COP28 and to invest in regions where women face the most risk.
Spotlight
COP28 curtain-raiser
For many years, carbon sinks, carbon markets and land-use emissions were often the only way to talk about food and nature at UN climate COPs.
COP27 in Egypt last year changed that – and political momentum has been growing ever since.
Food – as was the case for health and other subjects without a dedicated negotiations track – got a specific reference for the first time in the COP27 cover decision, along with rivers and nature-based solutions. This political acknowledgement was reinforced by a formal decision to renew work on agriculture, food security and climate for another four years.
The United Arab Emirates presidency of COP28, which starts next week, has promised that food will be at the heart of the negotiations and, specifically, within the Global Goal on Adaptation, mandated for adoption in Dubai.
At the Global Food Security Summit in London this week, UAE’s climate minister and COP28 food systems lead Mariam Almheiri urged world leaders to sign on to the “Emirates declaration on resilient food systems, sustainable agriculture and climate action”, which rallies states to “align their food systems” with their climate pledges. The declaration, as Politico reported, “barely acknowledges that food production and consumption patterns are a major driver of climate change”. Two-thirds of what the UAE is calling a “1.5C aligned menu” for COP28 delegates will be vegan and vegetarian for the first time in COP history, according to ProVeg.
But in an El Niño year with skyrocketing food prices, burning forests, choked supply chains, farmers grappling with the costs of war and green trade measures with no climate finance forthcoming, countries are keen that agriculture and ecosystems are recognised in COP outcomes in a more significant, lasting way than just workshops or a token thematic day.
One of the highlights of COP28 is the global stocktake, a five-yearly Paris Agreement “report card” on how the world has done so far, what actions have worked and what is needed to address the many yawning gaps.
Developing countries are keen that the stocktake also serves as a record of what has not worked: a recognition of mounting losses, risks and the costs of climate inaction.
For instance, Latin American countries and Nepal have called for recognising ecosystems – specifically, rainforests and mountains – at “tipping-point risk”. For developed countries such as New Zealand and Canada, phasing out agricultural subsidies, halting deforestation by 2030, and developing “innovative” finance for nature-based solutions are vital concerns. Meanwhile, the Least Developed Countries (LDCs), US and Canada want to see international carbon markets operationalised, as nations are set to approve rules.
But the stocktake is not just a wishlist. It has to inform the next round of climate pledges, with current pledges both inadequate and, some say, over-reliant on land.
For instance, a new Land Gap report, produced by a range of NGOs and academics, estimates that countries have proposed about 1bn hectares of land for land-based carbon removal in their climate mitigation pledges, with large emitters such as the US and Saudi Arabia relying the most on land to reach net-zero.
Meanwhile, Indigenous leaders have called for Europe’s lawmakers to vote to protect 80% of the Amazon by 2025 as part of their official COP28 position, pointing to a “cascade” of tipping points. “How much more do we have to wait until the global north prioritises the protection of the largest forest on Earth?” said Fany Kuiru, general coordinator of the Coordinating Body of the Indigenous Organizations of the Amazon Basin (COICA). “Today, it is our home burning, but yours will be next.”
To Teresa Anderson, global climate justice lead at Action Aid, it remains to be seen if the COP28 presidency’s menu of food systems initiatives is more than just a “random buffet of high-tech nothingburgers with a climate dressing, possibly sitting queasily alongside a couple of agroecological tidbits.” She told Carbon Brief:
“At best, this could help put industrial agriculture in the climate hotseat. At worst, it could act as a cynical effort to distract from the urgently-needed conversations about fossil fuels.”
News and views
GLIMMER OF HOPE: The Colombian government announced a new biodiversity fund to finance initiatives for climate action, biodiversity and ecosystem conservation and protection of vulnerable populations. According to the government, the resources will come from a national carbon tax, Colombia’s general budget and donations, among other sources of funding. The minister of environment, Susana Muhammad, said the country foresees the fund reaching nearly $1bn by 2026, Reuters reported. Muhammad described the fund as “a fundamental tool for environmental management and change throughout the country” and said the government expects to start off the delivery of resources by the end of this year. A trust will monitor the effective distribution of resources, the newswire wrote, adding that environmental initiatives can be funded more than once.
NATURE VOTE: EU negotiators “finally clinched a political deal” on an embattled nature restoration law proposal, edging one step closer to the finish line, Politico reported. The adapted proposal agreed on 9 November gave “major concessions to the centre-right European People’s Party” which has “led a tough campaign” against the bill, the outlet said. The proposed law, covered in previous editions of Cropped, aims to restore and recover damaged ecosystems in the EU. It was “very painful” to see some key targets weakened, said Jutta Paulus, a green European politician, but she added: “I think we can be content with what we got.” The bill must still be formally adopted by the European parliament and council over the coming months before it can take effect.
MARINE PROSPECTING AREAS? :The UK government “has been accused of putting its quest for new North Sea oil and gas ahead of safeguarding Britain’s wildlife”, after one-quarter of new exploration licenses were found to overlap with Marine Protected Areas, the i newspaper reported. The story was based on analysis by Unearthed which found that 17 of 64 blocks “sit wholly or partly within” a protected area. Environmental groups described the Rishi Sunak government’s trade-off as “morally obscene” and pointed to impacts on species from whales to corals to fish spawning grounds. A Shell spokesperson quoted by the i newspaper said that “many oil and gas platforms already producing in the North Sea are in Marine Protected Areas”.
FORCED FISHING: The UK National Health Service and supermarkets Tesco, Sainsbury’s and Waitrose are sourcing seafood from “companies exploiting forced labour by minority Uyghurs”, DeSmog reported, with calls for the UK to “impose import controls on China”. The four-year-long Outlaw Ocean investigation has “sparked a wave of responses”, including “prompt[ing] a congressional hearing” in the US. A Canadian seafood company cut ties with tainted suppliers, the Globe and Mail reported. Separately, a Guardian investigation found that BP, Spotify and WWF were among companies that bought carbon credits from a South Pole biomass power project in Xinjiang “at risk of being implicated in potential Uyghur forced labour”. While South Pole told the paper it halted credit sales from the project in 2021, companies that bought the credits said “they were not alerted”.
EVICTED COMMUNITIES: The Kenyan government is evicting members of the Indigenous Ogiek community from their ancestral lands in order to make room for carbon-offsetting projects, BBC News reported. Members of the Ogiek community are hunter-gatherers in the country’s biggest forest, the Mau Forest. One of the community’s leaders told the outlet that the government had destroyed their houses and properties. The evictions were conducted even though the Ogiek community gained legal recognition to own and keep their lands in 2017, reported Mongabay. Kenya’s forest service said that the government is fighting illegal farming and housing in the forest.
ARGENTINIAN ELECTION: Although the newly elected far-right Argentinian president, Javier Milei, raised “general ideas” around renewable energy during the campaign, he is a climate sceptic and has brought forth few environmental proposals, Chequeado wrote. In fact, Milei has said that he wants to eliminate the country’s main science agency and the ministries of health, science and the environment, a situation considered by Argentinian researchers as “extremely worrying”, Nature reported. Milei and vice-president-elect Victoria Villarruel propose to call off withholding taxes on wheat, corn and soybeans, Agrofy News reported. The news website added that the government plans to work on a biofuel law, eliminate import and export regulations and advance measures focused on the traceability of commodities’ environmental footprints.
Watch, read, listen
‘NITROGEN WARS’: A Guardian long-read looked at the rise of the Dutch farmers’ revolt, which, it wrote, “may well determine the outcome of [this week’s] general election”.
SHORT STRAW: The Atlantic spoke to scientists who said that even if all plastic pollution were to stop tomorrow, “it would be at least a quarter of a millennium” before the world could see a plastic-free sea turtle.
WOOD FOR TREES: A new investigation by the Mekong Eye examined how Vietnam is clearing native forests for wood pellets to help Japan and South Korea reach their net-zero targets.
OLIVE BRANCH: An essay in Atmos looked at olive trees, which are “vital to life in Palestine”, and argued that the roots of the conflict need peace to be addressed.
New science
Integrated global assessment of the natural forest carbon potential
Nature
A new study found that the amount of carbon being stored in forests is “markedly under the natural potential” of those ecosystems. Researchers used field and satellite data to analyse the gap between current and potential carbon storage, finding that forests could hold more than 200bn tonnes of carbon more than they currently do. More than 60% of this potential occurs in still-standing forests, they found, meaning that restoration could increase carbon storage in those areas. The authors concluded: “Although forests cannot be a substitute for emissions reductions, our results support the idea that the conservation, restoration and sustainable management of diverse forests offer valuable contributions to meeting global climate and biodiversity targets.”
Increased extreme humid heat hazard faced by agricultural workers
Environmental Research Communications
Labourers on rice and maize croplands are the agricultural workers most exposed to dangerous humid heat, new research found. Researchers quantified the number of extreme humid heat days that took place throughout the planting and harvesting seasons of 12 crops, by using temperature data, agricultural calendars and cropland areas data. They found that south-east Asia, equatorial South America, the Indo-Gangetic Basin, coastal Mexico and the northern coast of the Gulf of Guinea faced the most frequent humid heat extremes, with certain areas exceeding 60 extreme humid heat days per year. The authors suggested that their results could encourage the creation of policies and efforts to protect vulnerable populations.
Low-intensity fires mitigate the risk of high-intensity wildfires in California’s forests
Science Advances
A new study found that low-intensity wildfires “substantially reduce the risk” of future, higher-intensity ones in California. Researchers analysed 20 years of satellite data related to fire activity across 124,000 hectares of California’s forests. They found that some forests’ fire risks were reduced by nearly two-thirds and these protective effects lasted for at least six years. They concluded that their findings “support a policy transition from fire suppression to restoration, through increased use of prescribed fire, cultural burning and managed wildfire”, adding that the state should aim to return to a “pre-suppression and precolonial fire regime”.
In the diary
- 22 November: Netherlands general election
- 22-24 November: CBD workshop to develop a road map for supporting ecosystem restoration under the Kunming-Montreal Global Biodiversity Framework | Rome
- 23-27 November: CBD legal expert workshop to review methods for describing significant marine areas | Oslo
- 29 November: CBD first session on the global partnership to support 30×30 | Online
- 30 November-12 December: UNFCCC COP28 | Dubai
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 22 November 2023: COP28 curtain-raiser; Food security fear; Dust, bugs and ice appeared first on Carbon Brief.
Cropped 22 November 2023: COP28 curtain-raiser; Food security fear; Dust, bugs and ice
Climate Change
Efforts to green lithium extraction face scrutiny over water use
Mining companies are showcasing new technologies which they say could extract more lithium – a key ingredient for electric vehicle (EV) batteries – from South America’s vast, dry salt flats with lower environmental impacts.
But environmentalists question whether the expensive technology is ready to be rolled out at scale, while scientists warn it could worsen the depletion of scarce freshwater resources in the region and say more research is needed.
The “lithium triangle” – an area spanning Argentina, Bolivia and Chile – holds more than half of the world’s known lithium reserves. Here, lithium is found in salty brine beneath the region’s salt flats, which are among some of the driest places on Earth.
Lithium mining in the region has soared, driven by booming demand to manufacture batteries for EVs and large-scale energy storage.
Mining companies drill into the flats and pump the mineral-rich brine to the surface, where it is left under the sun in giant evaporation pools for 18 months until the lithium is concentrated enough to be extracted.
The technique is relatively cheap but requires vast amounts of land and water. More than 90% of the brine’s original water content is lost to evaporation and freshwater is needed at different stages of the process.
One study suggested that the Atacama Salt Flat in Chile is sinking by up to 2 centimetres a year because lithium-rich brine is being pumped at a faster rate than aquifers are being recharged.
Lithium extraction in the region has led to repeated conflicts with local communities, who fear the impact of the industry on local water supplies and the region’s fragile ecosystem.
The lithium industry’s answer is direct lithium extraction (DLE), a group of technologies that selectively extracts the silvery metal from brine without the need for vast open-air evaporation ponds. DLE, it argues, can reduce both land and water use.
Direct lithium extraction investment is growing
The technology is gaining considerable attention from mining companies, investors and governments as a way to reduce the industry’s environmental impacts while recovering more lithium from brine.
DLE investment is expected to grow at twice the pace of the lithium market at large, according to research firm IDTechX.
There are around a dozen DLE projects at different stages of development across South America. The Chilean government has made it a central pillar of its latest National Lithium Strategy, mandating its use in new mining projects.
Last year, French company Eramet opened Centenario Ratones in northern Argentina, the first plant in the world to attempt to extract lithium solely using DLE.
Eramet’s lithium extraction plant is widely seen as a major test of the technology. “Everyone is on the edge of their seats to see how this progresses,” said Federico Gay, a lithium analyst at Benchmark Mineral Intelligence. “If they prove to be successful, I’m sure more capital will venture into the DLE space,” he said.
More than 70 different technologies are classified as DLE. Brine is still extracted from the salt flats but is separated from the lithium using chemical compounds or sieve-like membranes before being reinjected underground.
DLE techniques have been used commercially since 1996, but only as part of a hybrid model still involving evaporation pools. Of the four plants in production making partial use of DLE, one is in Argentina and three are in China.
Reduced environmental footprint
New-generation DLE technologies have been hailed as “potentially game-changing” for addressing some of the issues of traditional brine extraction.
“DLE could potentially have a transformative impact on lithium production,” the International Lithium Association found in a recent report on the technology.
Firstly, there is no need for evaporation pools – some of which cover an area equivalent to the size of 3,000 football pitches.
“The land impact is minimal, compared to evaporation where it’s huge,” said Gay.


The process is also significantly quicker and increases lithium recovery. Roughly half of the lithium is lost during evaporation, whereas DLE can recover more than 90% of the metal in the brine.
In addition, the brine can be reinjected into the salt flats, although this is a complicated process that needs to be carefully handled to avoid damaging their hydrological balance.
However, Gay said the commissioning of a DLE plant is currently several times more expensive than a traditional lithium brine extraction plant.
“In theory it works, but in practice we only have a few examples,” Gay said. “Most of these companies are promising to break the cost curve and ramp up indefinitely. I think in the next two years it’s time to actually fulfill some of those promises.”
Freshwater concerns
However, concerns over the use of freshwater persist.
Although DLE doesn’t require the evaporation of brine water, it often needs more freshwater to clean or cool equipment.
A 2023 study published in the journal Nature reviewed 57 articles on DLE that analysed freshwater consumption. A quarter of the articles reported significantly higher use of freshwater than conventional lithium brine mining – more than 10 times higher in some cases.
“These volumes of freshwater are not available in the vicinity of [salt flats] and would even pose problems around less-arid geothermal resources,” the study found.
The company tracking energy transition minerals back to the mines
Dan Corkran, a hydrologist at the University of Massachusetts, recently published research showing that the pumping of freshwater from the salt flats had a much higher impact on local wetland ecosystems than the pumping of salty brine. “The two cannot be considered equivalent in a water footprint calculation,” he said, explaining that doing so would “obscure the true impact” of lithium extraction.
Newer DLE processes are “claiming to require little-to-no freshwater”, he added, but the impact of these technologies is yet to be thoroughly analysed.
Dried-up rivers
Last week, Indigenous communities from across South America held a summit to discuss their concerns over ongoing lithium extraction.
The meeting, organised by the Andean Wetlands Alliance, coincided with the 14th International Lithium Seminar, which brought together industry players and politicians from Argentina and beyond.
Indigenous representatives visited the nearby Hombre Muerto Salt Flat, which has borne the brunt of nearly three decades of lithium extraction. Today, a lithium plant there uses a hybrid approach including DLE and evaporation pools.
Local people say the river “dried up” in the years after the mine opened. Corkran’s study linked a 90% reduction in wetland vegetation to the lithium’s plant freshwater extraction.
Pia Marchegiani, of Argentine environmental NGO FARN, said that while DLE is being promoted by companies as a “better” technique for extraction, freshwater use remained unclear. “There are many open questions,” she said.
AI and satellite data help researchers map world’s transition minerals rush
Stronger regulations
Analysts speaking to Climate Home News have also questioned the commercial readiness of the technology.
Eramet was forced to downgrade its production projections at its DLE plant earlier this year, blaming the late commissioning of a crucial component.
Climate Home News asked Eramet for the water footprint of its DLE plant and whether its calculations excluded brine, but it did not respond.
For Eduardo Gigante, an Argentina-based lithium consultant, DLE is a “very promising technology”. But beyond the hype, it is not yet ready for large-scale deployment, he said.
Strong regulations are needed to ensure that the environmental impact of the lithium rush is taken seriously, Gigante added.
In Argentina alone, there are currently 38 proposals for new lithium mines. At least two-thirds are expected to use DLE. “If you extract a lot of water without control, this is a problem,” said Gigante. “You need strong regulations, a strong government in order to control this.”
The post Efforts to green lithium extraction face scrutiny over water use appeared first on Climate Home News.
Efforts to green lithium extraction face scrutiny over water use
Climate Change
Maryland’s Conowingo Dam Settlement Reasserts State’s Clean Water Act Authority but Revives Dredging Debate
The new agreement commits $340 million in environmental investments tied to the Conowingo Dam’s long-term operation, setting an example of successful citizen advocacy.
Maryland this month finalized a $340 million deal with Constellation Energy to relicense the Conowingo Dam in Cecil County, ending years of litigation and regulatory uncertainty. The agreement restores the state’s authority to enforce water quality standards under the Clean Water Act and sets a possible precedent for dozens of hydroelectric relicensing cases nationwide expected in coming years.
Climate Change
A Michigan Town Hopes to Stop a Data Center With a 2026 Ballot Initiative
Local officials see millions of dollars in tax revenue, but more than 950 residents who signed ballot petitions fear endless noise, pollution and higher electric rates.
This is the second of three articles about Michigan communities organizing to stop the construction of energy-intensive computing facilities.
A Michigan Town Hopes to Stop a Data Center With a 2026 Ballot Initiative
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