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juillet 2024

Blackened trees, dead animals and scorched earth – early wildfires have already devastated Brazil’s Pantanal and local people worry they may lose the battle to save them

juin 2024

Since the Paris Agreement in 2016, the world’s 60 largest private banks financed fossil fuels with USD $6.9 trillion. Nearly half – $3.3 trillion – went towards fossil fuel expansion. In 2023, banks financed $705 billion in fossil fuel financing with $347 billion going to fossil fuel expansion alone.

mai 2024

Cultured meat is an emerging biotechnology that aims to produce meat from animal cell culture, rather than from the raising and slaughtering of livestock, on environmental and animal welfare grounds. The detailed understanding and accurate manipulation of cell biology are critical to the design of cultured meat bioprocesses. Recent years have seen significant interest in this field, with numerous scientific and commercial breakthroughs. Nevertheless, these technologies remain at a nascent stage, and myriad challenges remain, spanning the entire bioprocess. From a cell biological perspective, these include the identification of suitable starting cell types, tuning of proliferation and differentiation conditions, and optimization of cell–biomaterial interactions to create nutritious, enticing foods. Here, we discuss the key advances and outstanding challenges in cultured meat, with a particular focus on cell biology, and argue that solving the remaining bottlenecks in a cost-effective, scalable fashion will req

avril 2024

Global projections of macroeconomic climate-change damages typically consider impacts from average annual and national temperatures over long time horizons1–6. Here we use recent empirical findings from more than 1,600 regions worldwide over the past 40 years to project sub-national damages from temperature and precipitation, including daily variability and extremes7,8. Using an empirical approach that provides a robust lower bound on the persistence of impacts on economic growth, we find that the world economy is committed to an income reduction of 19% within the next 26 years independent of future emission choices (relative to a baseline without climate impacts, likely range of 11–29% accounting for physical climate and empirical uncertainty). These damages already outweigh the mitigation costs required to limit global warming to 2 °C by sixfold over this near-term time frame and thereafter diverge strongly dependent on emission choices. Committed damages arise predominantly through changes in average tempe
Carbon Brief explores which countries are or have targets to be net-negative, and the moral and scientific arguments for such a milestone.
A recent paper suggested damaging climate tipping points could be closer than first thought.

mars 2024

Current methods to calculate the so-called social cost of carbon largely leave out how many future people our emissions will kill. This study tries to correct that.

février 2024

RealClimate: A new paper was published in Science Advances today. Its title says what it is about: "Physics-based early warning signal shows that AMOC is on tipping course." The study follows one by Danish colleagues which made headlines last July, likewise looking for early warning signals for approaching an AMOC tipping point (we discussed it here),

décembre 2023

Alberta owns a new record. The province is home to an abandoned and unplugged gas well that leaks methane, an explosive greenhouse gas, into the atmosphere at the highest rate ever recorded in North America.
World Meteorological Organization says 2023 will be hottest year on record, leaving ‘trail of devastation and despair’

novembre 2023

Global fall averaged 4.2% between 2010 and 2022 but would have been far more if vehicle sizes stayed same

octobre 2023

By putting in place climate change adaptation measures, NATO has an opportunity to both strengthen operational resilience and adapt to the impacts of climate change.

septembre 2023

Study highlights conflict between Washington’s claims of climate leadership and its fossil fuel growth plans

août 2023

More than a century of research shows that burning fossil fuels warms the climate – that’s exactly why granting new North Sea oil and gas licenses is a bad idea.

juillet 2023

A collapse would bring catastrophic climate impacts but scientists disagree over the new analysis
Energy firms have made record profits by increasing production of oil and gas, far from their promises of rolling back emissions
Applications to mine the seabed in our ocean commons can be made from 9 July, says Guy Standing, author of The Blue Commons
Hopes of the UK government meeting its domestic and international climate targets have “worsened” over the past year, according to the CCC.
Almost every country in the world has signed up to the Paris Agreement’s goal of keeping warming well-below 2C and pursuing efforts to limit it to 1.5C.

juin 2023

Without more legally binding and well-planned net-zero policies, the world is highly likely to miss key climate targets.

mai 2023

Humanity is not on track to avoid the deadliest effects of climate change, according to University at Buffalo researcher Holly Jean Buck. "Our plans are not adequate to meet the goal of limiting the Earth's temperature increase to no more than 1.5℃ by 2050," said Buck, Ph.D., assistant professor of environment and sustainability....

avril 2023

The total concentration of greenhouse gases and other forcing agents, including cooling aerosols, reached 465 parts per million CO2 equivalents in 2020. This is around the peak level that the International Panel on Climate Change states 'should not be exceeded if — with a 67% likelihood and not allowing a temperature overshoot — the global temperature increase is to be limited to 1.5oC above pre-industrial levels'. When allowing for a temperature overshoot, the peak level could be exceeded in 2024. The peak concentrations corresponding to a temperature increase of 2oC by 2100 could be exceeded between 2027 and 2030.
UK tops all league tables for highly polluting form of travel, with a flight taking off every six minutes last year

mars 2023

The excessive use of phosphorus is depleting reserves vital to global food production, while also adding to the climate crisis

février 2023

Norway’s sovereign wealth fund threatens to vote against boards on firms it holds investments with over lax climate and social targets

janvier 2023

Carbon credits and offsets do not have a great record but the funds they raise are a vital part in fight against deforestation
Carbon offsets can help achieve emissions goals, some experts argue, while others say they are actively dangerous
Investigation into Verra carbon standard finds most are ‘phantom credits’ and may worsen global heating

décembre 2022

As it confronts environmental, geopolitical and economic shocks, Europe is in a position to show the way to climate neutrality and social equality, top advisor says.
Governments must close gap between net zero rhetoric and reality, says International Energy Agency head