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OA - Liste

juillet 2024

Scientists now fear that there is little more than five years left to prevent irreversible climate damage and stark changes to the Earth’s weather patterns from global carbon emissions, Minister for Climate Eamon Ryan has warned.
A new study finds that the mining and processing of the metal critical to EV batteries and renewable energy storage projects depletes and contaminates surface water, often in already vulnerable communities.
Offsetting allows corporations to increase emissions, while getting credit for pseudo-reductions elsewhere
Sudden cut in pollution in 2020 meant less shade from sun and was ‘substantial’ factor in record surface temperatures in 2023, study finds
The contaminants have also recently been found in testes and semen amid concerns about falling male fertility
Scientists warn of ‘scary’ feedback loop in which fires create more heating, which causes more fires worldwide
Small increase in temperature of intruding water could lead to very big increase in loss of ice, scientists say
Melting of ice is slowing planet’s rotation and could disrupt internet traffic, financial transactions and GPS
Jakarta’s subsidence crisis illustrates the conflation of two threats: global climatic sea-level rise and the local environmental crisis. It also sheds light on the city’s longstanding issues of urban flooding and chronic piped water supply shortages.
As the climate crisis causes heavier and more frequent floods across the US, one in four small businesses are one disaster away from shutting down
Months of scorching temperatures sometimes over 50 degrees Celsius (122 Fahrenheit) in parts of India this year left hundreds dead or ill. Official government records put the number of heat-related deaths this year as 110, but public health experts say that number is more likely in the thousands. Poor data collection methods and reporting are stopping the country from getting a more accurate picture of how deadly the heat is. Experts are concerned that it's hindering efforts to better prepare for future heat waves.
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
Warning after intensification of storm aided by unusually hot ocean waters in much of Beryl’s path. Hurricane Beryl, which slammed into Texas on Monday after wreaking havoc in the Caribbean, was supercharged by “absolutely crazy” ocean temperatures that are likely to fuel further violent storms in the coming months, scientists have warned.
Breathless reporting on when the present global heat anomaly will begin to fall is understandable, given heat suffering around the world. However, fundamental issues are in question and a reflection on time scales is in order, for the sake of understanding ongoing climate change and actions that need to be taken.
A carbon bomb is any fossil fuel extraction project that will generate more than one gigatonne of carbon dioxide (1GtCO2) over its remaining life.
Numerous prominent petroleum geologists have been warning for years about the resources limitations of oil both in the U.S. and globally.  It’s now looking like the wolf is nearing the door.
Monthly global surface air temperature anomalies (°C) relative to 1850–1900 from January 1940 to June 2024, plotted as time series for all 12-month periods spanning July to June of the following year. The 12 months from July 2023 to June 2024 are shown with a thick red line, while all other 12-month periods are shown with thin lines shaded according to the decade, from blue (1940s) to brick red (2020s).
Simultaneous harvest failures across major crop-producing regions are a threat to global food security. Concurrent weather extremes driven by a strongly meandering jet stream could trigger such events, but so far this has not been quantified. Specifically, the ability of state-of-the art crop and climate models to adequately reproduce such high impact events is a crucial component for estimating risks to global food security. Here we find an increased likelihood of concurrent low yields during summers featuring meandering jets in observations and models. While climate models accurately simulate atmospheric patterns, associated surface weather anomalies and negative effects on crop responses are mostly underestimated in bias-adjusted simulations. Given the identified model biases, future assessments of regional and concurrent crop losses from meandering jet states remain highly uncertain. Our results suggest that model-blind spots for such high-impact but deeply-uncertain hazards have to be anticipated and acc
Overexploitation and habitat loss pose extinction threats for migratory fish, birds and others, worldwide
New research shows the company’s scientists were as “skillful” as independent experts in predicting how the burning of fossil fuels would warm the planet and bring about climate change.
Resilience here, then, is not the naïve faith in riding the storm and putting the world back together more or less as it was, issue by issue, but recognising the necessity to fundamentally reorganise and reorient human society in ways that can allow human flourishing and ecological sustainability in symbiotic and mutually supportive relations of reciprocity and regeneration - and in a multiplicity of ways.
Huge patches of forest in Tasmania have rapidly turned brown over recent months, with many trees dying after a dry summer. As climate change causes hotter and drier weather, can we expect more tree deaths in the future? 
Economic growth allows the few to grow ever-wealthier. Ending poverty and environmental catastrophe demands fresh thinking
Blog edited by Sam Carana, with news on climate change and warming in the Arctic due to snow and ice loss and methane releases from the seafloor.

juin 2024

Mainstream media are ignoring a scientist who is whistleblowing the climate profession. During the five years since new kinds of activism brought the climate issue into the headlines like never before, the topic has more clearly become one where people respond due to their preexisting worldviews. It’s not just believers and sceptics, but there are those who think technology can save us, those who think it’s too late; those who think the science is clear, others who think it is open; those who believe humans will muddle through and those predicting human extinction. Climate scientists themselves now range from those emphasizing ‘we can do this’ to those that express their grief and outrage by gluing themselves to buildings. Meanwhile, misleading narratives are amplified by a variety of vested interests, including fossil fuels, nuclear, and clean tech. Climatologist Dr Wolfgang Knorr is an unusual voice in this cacophony because he has been ‘blowing the whistle’ on the climate science itself and how it is being
We must tackle the environmental nightmare of 4x4s by taxing them off the road, says George Monbiot.
Carbon Brief provides an updated analysis of when the world will likely exceed the Paris 1.5C limit
Summary for Policymakers. A Report of the Intergovernmental Panel on Climate Change
Historical responsibility for climate change is radically shifted when colonial rule is taken into account, Carbon Brief analysis reveals.
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.