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Extreme heat could affect nearly 4 billion people by 2050 if warming reaches 2C
environment1 month ago

Extreme heat could affect nearly 4 billion people by 2050 if warming reaches 2C

A Nature Sustainability study projects that under a 2C warming, the number of people exposed to extreme heat would rise from about 1.54 billion in 2010 to 3.79 billion by 2050, with the heaviest impacts in India, Nigeria, Indonesia, Bangladesh, Pakistan and the Philippines; the biggest shifts occur early around the 1.5C mark, changing energy needs by boosting cooling demand in the southern hemisphere and reducing heating demand in the north, underscoring the urgency of adaptation and rapid emissions cuts.

via The Guardian|
#climatechange#energydemand#environment
Scientists Alarmed by Unprecedented Global Heat Surge
environment1 year ago

Scientists Alarmed by Unprecedented Global Heat Surge

Scientists are investigating the causes behind the unprecedented record heat of 2023, which has continued into 2024, raising concerns about the accelerating climate crisis. While human-induced global warming and an El Niño event are major factors, other potential contributors include reduced cloud cover, decreased sulfate aerosols from shipping pollution cuts, the Hunga Tonga volcanic eruption, and less Saharan dust. The situation suggests a possible climate feedback mechanism not yet understood, with 2024 likely to be the hottest year on record, surpassing the 1.5C threshold above pre-industrial levels.

via The Guardian|
#climatechange#elnino#environment
Diminishing Clouds Linked to Record Global Heat Surge
environment1 year ago

Diminishing Clouds Linked to Record Global Heat Surge

A new study by the Alfred Wegener Institute suggests that changes in Earth's cloud cover, particularly a decline in low-altitude clouds, may explain a recent unexplained 0.2°C surge in global warming. This decline reduces Earth's albedo, meaning less sunlight is reflected back into space, contributing to higher global temperatures. The study highlights the critical role of clouds in climate regulation and suggests that this feedback loop between warming and cloud loss could accelerate global warming, potentially crossing the 1.5°C threshold sooner than expected.

via Earth.com|
#albedo#climatechange#cloudcover
Long-term CO2 Storage Essential for Climate Impact
environment1 year ago

Long-term CO2 Storage Essential for Climate Impact

A new analysis highlights the importance of storing removed carbon dioxide for at least 1,000 years to effectively combat climate change. While decarbonization efforts continue, some emissions are unavoidable, necessitating carbon removal to achieve net-zero emissions. The study emphasizes that only long-term sequestration strategies can prevent additional warming, as shorter-term methods risk re-releasing carbon and exacerbating climate issues. The findings underscore the need for consistent international carbon storage standards and further research on the climate impacts of various sequestration durations.

via Anthropocene Magazine|
#carbonremoval#carbonsequestration#climatechange
ICJ Hears Landmark Climate Case on Global Responsibility
environment1 year ago

ICJ Hears Landmark Climate Case on Global Responsibility

The article discusses the potential role of the International Court of Justice (ICJ) in addressing climate change. It explores how the world's top court could influence global environmental policy by providing legal opinions on state responsibilities and obligations under international law to combat climate change. The ICJ's involvement could help clarify legal frameworks and encourage stronger commitments from nations to reduce greenhouse gas emissions and protect the environment.

via The New York Times|
#climatechange#environment#environmentalpolicy
Unprecedented Global Heatwaves Signal Emerging Climate Crisis
environment1 year ago

Unprecedented Global Heatwaves Signal Emerging Climate Crisis

A new study highlights the emergence of extreme heat-wave 'hotspots' worldwide, which exceed climate model predictions. These regions, identified on every continent except Antarctica, have experienced unprecedented heat waves, causing significant fatalities and environmental damage. The study suggests that destabilization of the jet stream, particularly in the northern hemisphere, may contribute to these anomalies, but the exact causes remain unclear. The phenomenon raises concerns about the adequacy of current climate models in predicting regional climate risks.

via Phys.org|
#climatechange#environment#extremeweather
COP29 Climate Finance Deal Strikes Controversy Amidst Progress
environment1 year ago

COP29 Climate Finance Deal Strikes Controversy Amidst Progress

The COP29 climate summit in Baku concluded with a contentious agreement for developed nations to provide at least $300 billion annually by 2035 to help poorer countries transition from fossil fuels. The deal, criticized as insufficient by developing nations, reflects geopolitical tensions and the looming return of Donald Trump to the U.S. presidency. The agreement also includes rules for global carbon markets and involves contributions from emerging economies like China. Despite the funding shortfall, the deal marks a step towards addressing climate finance needs.

via POLITICO|
#climatechange#climatefinance#cop29
Global Elections Sideline Climate Action Amid Political Shifts
politics1 year ago

Global Elections Sideline Climate Action Amid Political Shifts

The 2024 global election year has seen a decline in commitment to climate action, with major wins for climate-skeptic leaders like Donald Trump and right-wing parties in Europe. Despite increasing climate disasters, public prioritization of climate issues has waned, overshadowed by concerns like inflation and energy prices. The Cop29 summit in Azerbaijan highlighted the lack of progress in emissions reduction and climate finance, with some countries even withdrawing from climate agreements. This trend raises concerns about the future of global climate action amid rising populism and political shifts.

via The Guardian|
#climatechange#elections2024#environmentalpolicy
COP29 Stalemate: Rich-Poor Divide Over $250B Climate Finance
climate-change1 year ago

COP29 Stalemate: Rich-Poor Divide Over $250B Climate Finance

As COP29 negotiations progress, there is a significant push from poorer nations for increased climate funding, with a proposal for wealthy countries to contribute $250 billion annually. However, some acknowledge they may need to accept lower figures for now. Meanwhile, former President Trump's actions, including appointing oil executive Chris Wright as Energy Secretary, are seen as efforts to dismantle President Biden's climate policies, impacting the global climate summit's dynamics. Additionally, Exxon has issued a warning to US Republicans about the importance of addressing climate change.

via POLITICO Europe|
#climate-change#climatefunding#climatepolicy
Experts Declare 1.5°C Climate Target Unattainable Amid Record Heat Predictions
environment1 year ago

Experts Declare 1.5°C Climate Target Unattainable Amid Record Heat Predictions

As global temperatures approach the 1.5 degrees Celsius threshold set by the Paris Agreement, experts warn that surpassing this limit is increasingly likely due to insufficient action on reducing fossil fuel emissions. Despite the challenges, scientists emphasize the importance of continued efforts to mitigate further warming and adapt to climate impacts. Achieving the 1.5 C goal requires rapid emissions reductions and a significant increase in renewable energy use by 2030. The upcoming COP29 talks in Baku focus on financing climate action and updating national commitments to curb emissions.

via NPR|
#climatechange#cop29#environment
Scientists Warn of Imminent Climate Threats from Melting Glaciers and Atlantic Current Collapse
environment1 year ago

Scientists Warn of Imminent Climate Threats from Melting Glaciers and Atlantic Current Collapse

Leading climate scientists have issued a dire warning about the potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a crucial oceanic system that regulates global climate patterns. The collapse could lead to extreme weather in Nordic countries, cooling in Northwestern Europe, and disruptions in tropical monsoon systems, among other global impacts. Despite the IPCC's "medium confidence" that the AMOC won't collapse before 2100, scientists urge immediate action to reduce greenhouse gas emissions and enhance climate research. The situation underscores the urgent need for global cooperation to prevent catastrophic climate shifts.

via The Daily Galaxy --Great Discoveries Channel|
#amoc#climatechange#environment
Future Climate Change Threatens Ocean Life with Acidification and Warming
science1 year ago

Future Climate Change Threatens Ocean Life with Acidification and Warming

A study by the University of Bristol, published in Nature, warns that marine life, particularly plankton, may struggle to survive future global warming. The research compares ancient plankton responses to past warming with current climate projections, revealing that plankton cannot adapt quickly enough to the rapid temperature rise expected by the century's end. This threatens marine ecosystems and human food supplies, emphasizing the need for urgent global action to limit warming to below 2°C, as outlined in the Paris Agreement.

via Phys.org|
#climatechange#ecosystems#globalwarming
Trump's Election Shifts Climate Leadership to China at COP29
environment1 year ago

Trump's Election Shifts Climate Leadership to China at COP29

The COP29 climate conference in Baku, Azerbaijan, is overshadowed by Donald Trump's reelection, raising concerns about the U.S.'s commitment to global climate initiatives. The summit focuses on transitioning away from fossil fuels and addressing financial needs for developing nations to combat climate change. Despite previous pledges, global emissions continue to rise, and the world is not on track to meet renewable energy and efficiency goals. Indigenous groups remain marginalized in these discussions.

via NPR|
#climatechange#cop29#environment