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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.

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

Key developments

Bankrolling meat and dairy

LIVESTOCK GROWTH: Banks provide “billion-dollar support” for the “unsustainable” expansion of meat and dairy production around the world, according to a new report covered by the Guardian. Over 2015-22, financiers provided the world’s top 55 industrial livestock companies with “average annual credit injections of $77bn (£60bn)”, found the report produced by Feedback, a campaign group in the Netherlands and UK. Some banks “appeared to compromise their own anti-deforestation policies to do so”, the newspaper said. This credit “is designed to help companies expand”, the report noted, adding that meat production rose by 9% globally and dairy by 13%, between 2015 and 2021. 

AGRI ROADMAP CRITIQUE: A 2023 UN roadmap to end hunger while limiting agricultural emissions lacked transparency in how it was produced and did not include recommendations to “reduc[e] animal-sourced food production and intake”, according to a Nature Food comment article by a group of researchers. The roadmap, released by the UN’s Food and Agriculture Organization (FAO) last December, is a “welcome step” towards food system changes, the article said, but it did not include a list of authors and lacked information around the reasons for its recommendations. David Laborde, the director of the FAO’s agrifood economics and policy division, told the Guardian that the report emphasises the “importance of dietary shifts” and said a methodology and author list are in the full version of the report, which is not yet available online. 

‘CLIMATE-FRIENDLY’ BEEF?: Sentient, a not-for-profit news outlet focused on intensive farming, looked at a range of ongoing efforts to “make beef more climate-friendly” – such as seaweed feed for cows and the use of “regenerative agriculture”. The outlet noted that research into feeding cows “a type of red kelp” in an attempt to cut methane emissions received “plenty of media attention”, but it “isn’t as effective” as some initial reports claimed. The piece also analysed “holistic grazing” techniques, a “methane mask” to convert cow burps into other gases and a US “climate-friendly” label for beef. 

Forest clearing

TICKET TO RIDE: More than 7m trees were felled between 2019 and 2023 to build the Maya Train, a railway in the ​​Yucatán peninsula in south-east Mexico, according to news website Animal Politico. The controversial train project connecting tourist sites has been “criticised by environmental groups for its damage to caves, cenotes [natural sinkholes] and aquifers”, the outlet said. Last year, the website reported that at least 3.4m trees had been removed. Fonatur Tren Maya, the country’s tourism agency responsible for the project, said at the time that each tree and more would be re-planted. Fonatur did not respond to a new request for comment before publication, Animal Politico said. 

TAKING FLIGHT: Meanwhile, Mongabay reported on concerns from experts and locals in south-east Peru regarding the paving over of a famous bird-watching “winding dirt road” to allow more traffic to pass through. The Manu Road is a “once-in-a-lifetime experience for many bird-watchers who come here for the rich biodiversity”, according to the outlet. It passes along the edge of the Manu National Park – one of the world’s most biodiverse protected areas. Last year, authorities “quickly paved the road, allowing for greater motor vehicle traffic”, Mongabay said. Experts and locals now believe that the area’s “wildlife, its ecotourism industry, and even bird-watchers” are at risk due to increased vehicle speeds and road accidents. 

BRAZIL DEFORESTATION: A separate Mongabay piece looked at the details of a new report showing that deforestation from soy is ongoing in Brazil’s Cerrado and Amazon rainforest. The report from Mighty Earth, an environmental group, found evidence of almost 27,000 hectares of deforestation and forest degradation in the Cerrado biome between September and December 2023, Mongabay said. In the Amazon, around 30,000 hectares were affected during this time. Mongabay said the deforestation was “located near grain silos used by the seven biggest soy traders in Brazil”. The report used satellite imagery to monitor short-term deforestation and degradation linked to soy and cattle ranching. Meanwhile, the presidents of Brazil and France launched an Amazon “green investment plan” to raise €1bn in public and private funds over the next four years, Le Monde said. 

World water roundup

DRY DAYS: Zimbabwe’s maize harvest is expected to be 70% less than last season – and the lowest since 2016 – after an El Niño-induced drought “decimated crops”, newZwire reported. As 2.7m Zimbabweans face hunger, DeutscheWelle reported that national authorities have declared the 2024 farming season “a total failure” and have urged families to conserve food. The World Food Programme (WFP) said it “might not be able to assist families in Zimbabwe facing food insecurity”, DW added, even as locals in rural areas pin their hopes on WFP aid, according to allAfrica. As Zimbabwe mulls declaring a state of emergency, Malawi and Zambia have both declared a state of disaster over drought, the Press Trust of India reported. It noted that, according to the WFP, last month was the “driest February in 40 years for Zambia and Zimbabwe”, while Malawi, Mozambique and parts of Angola had “severe rainfall deficits”. Voice of America News reported that Russia donated 25,000 tonnes of grain and 23,000 tonnes of fertiliser to Zimbabwe, but “the fertilisers may not work…as most crops have been dried out by a lack of rain”. 

WATER FOR PEACE?: As drought and conflicts rage on, women and girls are the “first to suffer” when drought impacts poor or rural areas across the world, the UN said “in a plea to countries to mend conflicts over water resources, the Guardian reported. As climate change, pollution and over-use are exacerbating conflicts over water, the benefits of including cooperation over water in peace strategies are “often overlooked”, according to the UN’s annual report on water and development covered in the story. The report did not delve into “politically sensitive” conflicts, despite its “water for peace” theme, the outlet noted. Elsewhere, a comment article in the New Humanitarian called on the international community to “take a stand against weaponising water”, and the Financial Times ran a special series on the future of water.

URGENT CONFLUENCE: Climate change needs to be “the urgent catalyst for collaboration” for three major river basins in Asia and the future of a billion people and the ecosystems on which they depend, said the International Centre for Integrated Mountain Development (ICIMOD). Along with the Australian Water Partnership, the eight-nation Hindu Kush Himalaya body released three major new studies on the Ganga, Indus and Brahmaputra basins. Researchers called on governments to “build fresh consensus” and focus on shared challenges, despite collective action being fraught and “mistrust and power asymmetry among countries” being high. “The humanitarian, economic and environmental cost of our failing to embrace these new approaches now hugely outweighs the risks: and this is one arena in which science can galvanise action,” ICIMOD’s Arun Shrestha told Carbon Brief.

News and views

GAZA FAMINE: On 18 March, the UN Food and Agricultural Organization (FAO) warned that famine in the Gaza Strip was “imminent”, the Middle East Eye reported, citing new analysis by the Integrated Food Security Phase Classification (IPC) global initiative. According to the report, Gaza’s entire population of 2.3m people was “enduring acute food insecurity”, while over half were experiencing hunger levels classified as catastrophic. FAO’s deputy director general Beth Bechdol told the Washington Post: “This is 100% a man-made crisis. There’s no hurricane, there’s no cyclone, there’s no 100-year flood. There’s no protracted year-on-year drought.” According to Al Jazeera, a new Oxfam report found that Israel was “deliberately” blocking food and other aid, while EU foreign affairs chief Josep Borell accused Tel Aviv of using “famine as a weapon of war”. UN chief António Guterres – who described the IPC report as an “appalling indictment” – called once again for a humanitarian ceasefire “amid urgent efforts to avert famine”, the Guardian reported. 

NATURE STANDSTILL: A final vote by EU ministers on the bloc’s embattled nature restoration law was shelved after growing pushback from individual countries, Euronews reported. The law, detailed in a Carbon Brief Q&A, was approved by the European parliament in February. The EU council vote – which requires a “qualified majority” to pass – is usually a straightforward next step, but governments in Sweden, Italy, Finland, Austria, Hungary, Poland, the Netherlands and Belgium indicated they would oppose or abstain from the vote, which was due to take place on 25 March, the outlet reported. Hungary, whose newly raised opposition led to the deadlock, said it was concerned about a “lack of leeway to pursue national policies”, the outlet said. The EU’s environment chief, Virginijus Sinkevičius, said this “raises serious questions about the consistency and stability of the EU decision-making process”, the article reported. He added: “The EU’s and its member states’ international reputation is at stake.” Meanwhile, farmer protests also continued in Brussels this week, Politico reported.

COCOA CRISIS LATEST: Cocoa prices rose above the cost of copper as the continued “supply crunch grips the market”, Bloomberg said. The poor cocoa harvest, previously covered in Cropped, comes after “bad weather and crop disease” hit growers in west Africa where “most of the world’s cocoa is grown”, the outlet said. This will cause, among other things, “Easter egg prices hikes” around the world, another Bloomberg piece noted. A recent rapid attribution study found that the “dangerous humid heat” that engulfed western Africa in mid-February was made 10 times more likely by human-caused climate change, Carbon Brief reported. The heatwave potentially affected millions of people, the study said.

CARBON WITHOUT CONSENT: The state of Sabah in Malaysian Borneo declared its intent to press ahead with an “opaque nature conservation agreement”, despite concerns flagged by UN special rapporteurs, Mongabay said. In 2021, Sabah state officials signed over “rights to carbon and other marketable ecosystem services from more than half of [its] forests in secret” to Singaporean firm Hoch Standard, the article reported. The company has “no record in carbon trading” and is controlled by a “myster[ious]” company in the British Virgin Islands, it added. According to the letter by the UN special rapporteurs, the deal grants “100 years of monopoly rights” over 2m hectares of forest, “fails to acknowledge the presence of Indigenous Peoples in the area” and was signed without their free, prior, informed consent (FPIC). Sabah state, in its response, reiterated its “commitment to uphold FPIC”, special rapporteur Prof Surya Deva told Mongabay. But, he added that he believes “the government [and] the relevant company should do more to obtain a social licence from affected Indigenous Peoples”. Separately, a new study found Australia’s main method to generate carbon offsets to be “a failure on a global scale”, the Guardian wrote.

WALK THE PLANK: The International Seabed Authority’s (ISA) member states are considering “strip[ping] Greenpeace of its observer status”, as the body met again to decide on rules for deep-sea mining, BBC News reported. Canada’s The Metals Company – which has a mining joint venture with Nauru – “claims Greenpeace activists disrupted a research expedition when they boarded its vessel in the remote Pacific” last year, the article explained. In response, Greenpeace said the incident “was a peaceful protest aimed at protecting a pristine ecosystem”, it noted. Separately, the Wall Street Journal reported that hundreds of former US government and military officials, including Hilary Clinton, are calling for the US Senate to ratify the ISA’s parent treaty: the UN Convention on the Law of the Sea (UNCLOS). As a non-voting member of the ISA, the US “can’t be awarded exploration contracts to mine the seafloor in international waters”, the newspaper said, unlike China which currently has five contracts. The Financial Times reported that Chinese and Russian diplomats at the talks called a “US claim to an extended area of seabed…unacceptable”, given its current position on UNCLOS. Separately, a Nature editorial warned that deep-sea mining talks “should not be rushed”, as “too little is known about the deep-sea ecosystem”. 

SAKURA MATATA: The Korea Times reported that South Korea’s “iconic” cherry blossom festivals in the south of the country have been significantly set back by “[t]he delayed blooming of seasonal flowers primarily attributed to climate change”. Local governments that moved their dates up to respond to last year’s “abnormally early blooming caused by warming” have found themselves “grappling with flowerless venues” this year, it added. Cherry blossom festivals are a major part of the local economy and, according to one report in the story, “create ripple effects of some 300% surges in sales” in tourism district shopping revenues. Last month, South Korea recorded its highest average February temperature since 1973, followed by “abnormal” sub-zero weather and low rainfall, failing to give the spring flowers what they needed to fully bloom, the article explained. Meanwhile, a new study estimated that climate change could drive cherry blossoms to extinction in Japan by 2100, reported the South China Morning Post.

Watch, read, listen

AMBANI’S ARK: A two-part Himal Southasian story investigated a new wildlife “rescue” centre run by petrochemical giant Reliance, housing critically endangered species “at the world’s largest [petroleum] refinery complex”.

ATE LEGS: A Yale Environment 360 piece looked at the wider questions around controversial plans from a Spanish company to “factory farm octopuses for their meat”. 

FOREST RIGHTS: The Guardian’s Science Weekly podcast examined the “growing movement” to give legal rights to nature. 

FEET IN WATER: On World Water Day, a comment piece in Nature featured reflections from four scientists on what it takes to build better access to water and justice.

New science

Climate change impacts and adaptations of wine production
Nature Reviews Earth & Environment

Research found that as much as 70% of the world’s wine-producing areas face “substantial risks” of being less suitable to make wine at a global temperature rise above 2C. The researchers extensively reviewed other studies of the effects of climate change on grape growing and wine production around the world. They found that climate change poses “huge challenges” for wine production. They noted that a temperature rise below 2C may benefit wine-growing in some regions, indicating that this limit could be a “safe threshold” for just over half of traditional vineyards. The study outlined the risks of increased heat and drought, extreme weather and the unpredictability of pests and disease in key wine-producing areas such as northern California, France, Spain, Chile and Argentina.

Spillover effects of organic agriculture on pesticide use on nearby fields
Science

Pesticide use in organic croplands reduces when there are other organic fields nearby, a study found. However, it said pesticide use in conventionally grown fields increases when they are close to organic fields due to pest “spillover” when tackled using different methods. The researchers looked at pesticide use and crop data from around 14,000 fields in Kern County in the US state of California between 2013 and 2019, alongside wider US data to help simulate how organic agriculture affects pesticide usage. The findings of this analysis suggest that “clustering” organic croplands together could help to reduce the overall use of pesticides.

Elevation modulates the impacts of climate change on the Brazilian Cerrado flora
Diversity and Distributions

A new study found that about half of all plant species in the ecologically-rich Brazilian Cerrado “will experience a net range loss due to climate change” and two-thirds of its landscapes will face species losses by 2040. Using species distribution models, the study estimated how warming temperatures might cause more than 7,000 species in the region to move. The researchers found that elevation “exerts a central role” in how plants respond to climate change, with lowlands more likely to “become local extinction hotspots” as many species move upslope, but mountaintop species will have “nowhere-to-go”. The authors concluded that climate change mitigation “is key for safeguarding the integrity of Cerrado ecosystems in the long term” and “urge[d] the incorporation of climate adaptation measures into conservation and restoration decision-making to increase climatic resilience”.

In the diary

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

The post Cropped 27 March 2024: Bankrolling meat and dairy; EU nature restoration pushback; Missing cherry blossoms appeared first on Carbon Brief.

Cropped 27 March 2024: Bankrolling meat and dairy; EU nature restoration pushback; Missing cherry blossoms

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Every country needs a model to help optimise its energy transition

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Claver Gatete is Executive Secretary of the UN Economic Commission for Africa. Jason Veysey is Energy Modeling Program Director and Senior Scientist at the Stockholm Environment Institute. Lisa Sachs is Director of the Columbia Center on Sustainable Investment at Columbia University.

The case for global energy transition has rarely been clearer. The closure of the Strait of Hormuz earlier this year exposed the cost of unplanned, fossil-dependent systems, while the falling cost of renewables, the rising penetration of electric vehicles, and the growing value of demand flexibility have made the direction of travel obvious. The benefits of a clean, secure, integrated system are no longer in dispute. What remains unclear is how to build it.

Countries around the world have called for faster renewable energy deployment and alternative energy arrangements. A secure, affordable, resilient, decarbonised system requires specific investments in specific places in a specific sequence, optimised across sectors and borders. But very few governments have the analytical foundation to translate those imperatives into investment.

The two instruments that are supposed to determine investment priorities for decarbonisation – Nationally Determined Contributions (NDCs) and country platforms – cannot answer the most basic question facing any country undertaking an energy transition: what should the energy system look like?

    To close this gap, every country needs a bankable, economy-wide optimisation model for its energy system. A model is not a plan, but it can help answer the critical question of what the future energy system should look like. It shows how optimal scenarios vary as assumptions and policies are adjusted, calculates investment requirements and sequencing, and quantifies how system costs are affected by assumptions, policies, and exogenous variables like trade policy and financing terms.

    Tool for efficient investment

    Optimisation is a simplified way of simulating an energy system, but it can be an extremely powerful tool for moving energy planning from reactive (how do we manage the disparate actions in the energy system?) to intentional (what energy system underpins our national objectives?). A model can show how optimal scenarios vary as assumptions and policies are adjusted, and how investment requirements are quantified and sequenced.

    Optimisation models can treat the energy system and the sectors it serves as an integrated whole, optimising across sectors and projects in ways that can be mutually reinforcing. If considered independently, growth in industrial demand, transport electrification, and digital infrastructure can add stress to the energy system. But an optimised plan can arrange these and other changes in an efficient, synergistic way.

    Two to tango: How governments can unlock private investment for national climate goals

    New load can be added where low-cost power is available; industrial customers can ensure the viability of investments in energy supply; electric vehicle charging policy can smooth load curves and reduce costs for all consumers.

    Additionally, optimisation modeling can also change the financeability of investments. Taken alone, each project faces uncertainty about the rest of the system, which raises the cost of capital and causes projects to stall or unwind after contracts are signed. A coherent, optimised plan makes visible the coordination that private capital would otherwise have to bet on: identified offtake, sequenced and committed transmission, contracted power supply, and so on.

    What COP31 and COP32 should do

    The upcoming COPs in Turkey and Ethiopia can shift the center of gravity of international climate cooperation from fragmented commitments to planning. Three moves are urgently needed.

    First, optimised, economy-wide, long-term energy system planning must be the foundation on which any meaningful NDC, country platform, or finance commitment rests. NDCs are typically drafted by environment or single-line ministries, with limited cross-sectoral input from ministries of energy, finance, and planning. They contain targets, derived from sectoral strategies or national commitments, not from an analytically grounded picture of what the energy system should look like and what investments would make it work. Country platforms are generally a portfolio of investments assembled from existing project pipelines, rather than derived from a system-level analysis of what an optimised, decarbonised energy system would require.

    Second, recognise regions as a key planning unit. Modern integrated energy systems are inherently regional. Renewable endowments are unevenly distributed; balancing variable supply across borders lowers aggregate cost, reduces redundant backup capacity, and unlocks economies of scale no individual nation can achieve. Many energy investments in Southeast Asia, East Africa, Southern Africa and Central Asia may only be financeable in a regional context. Assessing domestic infrastructure without regional optimisation perpetuates the perception that decarbonisation is more expensive than it is.

    COP31 leaders unveil global targets, with spotlight on electrification

    Third, finance the planning capacity. A coordinated commitment by multilateral development banks, bilateral donors, and philanthropic partners to help every region and its constituent countries develop and maintain their own modelling capability, with open-source tools and regional analytical hubs, would close the most consequential gap in the current architecture. The cost is small relative to current spending on country platforms, failed project preparation, and misallocated infrastructure investment.

    This includes supporting regional institutions such as the ASEAN Centre for Energy, the African Energy Commission, regional power pools, and the Latin American and Caribbean Energy Organization to determine what optimised regional systems require. Country-by-country pledging, repeated at every COP, will not deliver what meaningfully integrated systems can.

    The 2026 energy crisis made the cost of unplanned, fossil-dependent systems newly visible. That window of clarity will close. The international community should seize the moment to build the planning foundation that has been missing for thirty years, rather than commissioning another round of NDCs or pledges, striving for outcomes neither was designed to deliver.

    The post Every country needs a model to help optimise its energy transition appeared first on Climate Home News.

    Every country needs a model to help optimise its energy transition

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    Explainer: How the ‘super El Niño’ will reshape the world’s weather

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    The world is currently experiencing what is expected to become the strongest El Niño on record – dubbed a “super El Niño” by many.

    El Niño is the warm phase of a recurring climate pattern in the tropical Pacific that releases heat from the ocean into the atmosphere.

    This temporarily raises global temperatures and reshapes rainfall and extreme weather around the world – impacting the lives of billions of people.

    The current El Niño event began in June and is expected to last into 2027.

    El Niño is part of a wider climate pattern called the El Niño-Southern Oscillation (ENSO) cycle.

    The ENSO cycle also has a cool phase, known as La Niña, as well as a “neutral” phase. El Niño and La Niña events typically last between nine and 12 months, but can go on longer.

    Below, Carbon Brief explains how the ENSO cycle works, its impacts on extreme weather and global temperatures and why this El Niño event is projected to be the most intense since records began.

    The post Explainer: How the ‘super El Niño’ will reshape the world’s weather appeared first on Carbon Brief.

    https://interactive.carbonbrief.org/el-nino-explainer/index.html

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    Analysis: The two largest reservoirs in the US have hit record-low levels

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    The second-largest reservoir in the US reached a record-low water height on Saturday – just days after the country’s largest reservoir broke its own record. 

    Both Lake Mead and Lake Powell are located on the Colorado River.

    They provide water for populations across seven US states in the south-western US, with around 40 million people getting some or all of their municipal water from the Colorado River.

    The river also provides water for around 5.5m acres (22,258 square kilometres) of farmland across Colorado, Arizona, California and the other states in the river basin.

    Experts tell Carbon Brief that climate change, population growth and over-consumption are all contributing to the current record-low levels of the reservoirs.

    Record lows

    At full capacity, Lakes Mead and Powell can hold a combined 68 cubic kilometres of water – enough to supply all household consumption in the contiguous US for nearly 1.5 years. However, the water level in both reservoirs has been declining for decades.

    The chart below shows the water level of Lake Mead, in metres above mean sea level. The reservoir, which began to fill in 1935 following the construction of the Hoover Dam, has a “full pool” maximum capacity of 347.60 metres. The water level in Lake Mead reached a record low of 317.11 metres on 7 August.

    Lake Mead, the larges reservoir in the US, reached record-low water levels in early August.

    The following chart shows the water level of Lake Powell, in metres above mean sea level. Lake Powell’s full-pool level is 1,127.76 metres.

    While the reservoir reached its maximum capacity several times in the 1980s, it has not done so since. On 15 August, the water level in Lake Powell was recorded at a new record-low of 1,072.87 metres.

    Lake Powell, the second-largest reservoir in the US, reached record-low water levels in mid-August

    Both reservoirs have continued to decline in the days since breaking their respective records. The downward trend will largely continue in both lakes until next spring, when the snowpack in the mountains of the Upper Colorado River Basin begins to melt, says Dr Jack Schmidt, a senior research scientist at Utah State University’s Center for Colorado River Studies. He tells Carbon Brief:

    “The big dilemma of the moment is that we’re only in the middle of August, and we have no assurance of what the coming winter will be. The only thing we can be sure of is that we will be depleting overall total basin reservoir storage from now until, roughly, early April.”

    Compounding factors

    The record lows across the two reservoirs are the result of several compounding factors, experts tell Carbon Brief.

    Since the turn of the 20th century, the amount of water flowing along the Upper Colorado River has declined by about 20%. Research suggests that half of this decline can be attributed to human-induced climate change.

    Most of the river’s streamflow comes from the snowpack of the Upper Colorado River Basin, which stretches across five western US states but is primarily located in Colorado and Utah.

    This region has been gripped by a historic “megadrought” for more than a quarter of a century. Nearly half of the megadrought’s intensity over 2000-18 is attributable to climate change, according to a 2020 study.

    At the same time, the increasing population in the US south-west has put added pressure on the Colorado River’s water supply. The number of people obtaining some or all of their water from the Colorado system has grown by 15 million (around 60%) since 1992.

    Schmidt tells Carbon Brief:

    “There’s an ultimate cause of the present water crisis, and there’s a proximate cause. The ultimate cause is a warming climate, a warming planet and a pretty clear correlation between warming conditions and decreased runoff in the Colorado River Basin.

    “The proximate cause is that in this messy democratic republic of ours, big policy decisions that match the variability of the climate occur painfully slowly – with intense political negotiations – and only incrementally.”

    On 31 July, the US Bureau of Reclamation, which manages water resources in the western US, released an environmental impact statement on its proposed post-2026 strategy for managing Lakes Powell and Mead. The strategy itself has not been released yet.

    Schmidt notes that the statement does appear to give the Bureau flexibility to “respond to crisis” by reducing the delivery of water to several states. However, he adds:

    “They acknowledge it won’t work if we just stay critically dry, and of course every climate model for the 21st century, especially with a continually warming planet, says that that’s exactly what’s going to happen.”

    The post Analysis: The two largest reservoirs in the US have hit record-low levels appeared first on Carbon Brief.

    Analysis: The two largest reservoirs in the US have hit record-low levels

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