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All articles tagged with #ipcc

climate-change2 years ago

Climate Expert Warns: Earth Heating Up Faster Than Predicted

Former head of NASA's climate group, James Hansen, warns that the rate of global warming could increase significantly in the next few decades, surpassing the targets set by the Paris climate agreement. Hansen's study, published in the journal Oxford Open Climate Change, suggests that a reduction in sulfuric air pollution particles could accelerate global warming. The research also indicates that widely used climate models underestimate the sensitivity of ocean heat transport currents to melting ice, potentially leading to drastic climate impacts such as superstorms, changes in rainfall patterns, and significant sea-level rise. The study has sparked controversy within the climate science community, with Hansen criticizing the United Nations Intergovernmental Panel on Climate Change (IPCC) for underestimating future warming, while other researchers, including IPCC authors, have criticized the study.

via Ars Technica|
#climate-change#climate-impacts#climate-science
climate-change2 years ago

Climate Scientist's Dire Warning: Imminent Planetary Warming Deepens Divides

A new study published in the journal Oxford Open Climate Change warns of an imminent spike in planetary warming, projecting a big jump in the rate of warming in the next few decades. The research suggests that a reduction in sulfuric air pollution particles called aerosols could send global temperatures soaring beyond the targets of the Paris climate agreement sooner than expected. The study has sparked controversy and deepened divides among climate scientists, with the lead author, James Hansen, criticizing the United Nations Intergovernmental Panel on Climate Change (IPCC) for underestimating future warming. The findings also suggest that widely used climate models underestimate the speed at which global ice sheets could melt and sea levels could rise. The study highlights the urgent need for action to address climate change and the challenges faced by countries working to limit its harmful effects.

via InsideClimate News|
#climate-change#climate-impacts#climate-science
environment2 years ago

"Rock 'Planting' in Farms: A Key Solution for Meeting IPCC's Carbon Removal Goal"

Farmers can contribute to achieving a key carbon removal goal set by the IPCC by incorporating crushed volcanic rocks into their fields, according to a new study. This climate intervention strategy, known as enhanced rock weathering, accelerates the natural process of carbon sequestration in carbonate minerals. The study highlights the wet, warm tropics as the most promising locations for this approach. By combining emissions reductions with enhanced rock weathering, farmers can help slow down climate change while also improving soil health and countering ocean acidification. The study estimates that up to 217 gigatons of carbon could be sequestered globally by applying crushed basalt to agricultural fields.

via Phys.org|
#agricultural-fields#carbon-removal#climate-change
climate-change2 years ago

"Scientists Discuss Controversial Study on Europe's Potential Cold Spell"

Scientists behind a controversial study predicting a collapse of the Atlantic Meridional Overturning Circulation (AMOC) by 2095, which could result in a colder Europe, discuss the misconceptions surrounding their research. They clarify that while some confusion exists between the AMOC and the Gulf Stream, the collapse of either system would have severe consequences. The study's central estimate places the collapse around 2057, but they emphasize that the probability of it happening as early as 2025 is highly unlikely. The potential collapse of the AMOC would lead to a rapid cooling of Europe, with temperatures dropping by 5 to 10 degrees. The scientists stress the devastating implications for agriculture and human habitation, particularly in densely populated tropical regions. They also highlight the need for more research and measurements to better understand the AMOC and its potential tipping point.

via Phys.org|
#amoc#climate-change#climate-science
climate-change2 years ago

New IPCC Head Urges Caution in Assessing 1.5°C Threat

The newly appointed head of the UN's Intergovernmental Panel on Climate Change (IPCC), Jim Skea, cautioned against overemphasizing the threat of exceeding the 1.5 degrees Celsius global warming target. While surpassing this mark would lead to many problems and social tensions, Skea stated that it would not constitute an existential threat to humanity. He emphasized the importance of not paralyzing people with a message of doom, as it hinders necessary action on climate change. Skea also highlighted the need for expanding renewable electricity and developing technological solutions like carbon capture. He aims to provide better advice to specific groups and improve the flow of funding to address climate change.

via DW (English)|
#climate-action#climate-change#climate-targets
climate-change2 years ago

Urgent action needed to prevent climate collapse, says UN and IPCC.

The Intergovernmental Panel on Climate Change (IPCC) has said that avoiding the worst effects of climate change is still possible, and there are multiple feasible options for doing so. Finance and climate justice will be key, as the shift to a low-carbon economy will require three to six times the current amount of funding devoted to green investment. The IPCC report emphasizes that the poorest and most vulnerable people are being hit hardest by the impacts of the crisis. The UN Secretary-General called for countries to adopt an "acceleration agenda" involving all of the G20, and developed countries must bring forward their commitments on reaching net zero greenhouse gas emissions.

via The Guardian|
#climate-change#climate-justice#global-transformational-change
climate-change2 years ago

"Urgent Action Needed: UN Report Warns Humanity on Thin Ice with Climate Change"

The latest report from the Intergovernmental Panel on Climate Change (IPCC) warns that the world is facing long-foreseen impacts of climate change with increasing severity, and that human suffering will increase rapidly, especially among the poor. While there is still an opportunity to avert the worst scenarios, the IPCC warns that scientists still don't have answers to many of the questions that will define how well the world copes with the worst of climate change. The report highlights that the world is flying blind into the storm in many critical areas, including the extent of extreme weather events, the identification of vulnerable populations, and the timing of tipping points.

via POLITICO Europe|
#climate-change#extreme-weather#global-warming
climate-change2 years ago

Climate Scientists and UN Warn of Urgent Need for Action to Save Humanity from Climate Crisis

The United Nations' Intergovernmental Panel on Climate Change (IPCC) has issued a "survival guide for humanity" in the form of a landmark report that calls for urgent action to tackle the climate emergency. The report warns that current plans are insufficient to prevent the worst of what the crisis has in store and that deep, rapid, and sustained greenhouse gas emission reductions across all sectors are necessary to limit warming to 1.5 degrees Celsius above pre-industrial levels. The report also highlights the losses and damages the world is already experiencing and will likely continue to face in the absence of effective climate action.

via CNBC|
#climate-change#climate-emergency#cop28
environment2 years ago

UN's Climate Handbook Emphasizes Importance of 'Cold, Hard Facts' for a Liveable Future

The United Nations Intergovernmental Panel on Climate Change (IPCC) has released six landmark reports totalling 10,000 pages prepared by more than 1,000 scientists over the last six years. The reports warn that deadly heatwaves, storms, and floods amplified by global warming could be a foretaste as planet-heating fossil fuels put a “liveable” future at risk. The IPCC reports emphasise the danger of “tipping points” – temperature thresholds in the climate system that could, once crossed, result in catastrophic and irreversible change. The world must also tackle methane, the second most important atmospheric pollutant after CO2, which comes from leaks in fossil fuel production and agriculture, as well as natural sources such as wetlands.

via Al Jazeera English|
#climate-change#environment#fossil-fuels