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​​The Science Behind Sea Level Rise: How Past Emissions Will Shape Our Future

Union of Concerned Scientists

Sea levels are rising, and science shows they will continue to rise for generations due to heat-trapping emissions that have already been released. This highlights a profound and enduring climate injustice: future generations will face the consequences of todays decisions. What do we know about future sea level rise?

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Why Climate Scientists Are Sounding the Alarm on the Ocean Circulation System AMOC

Union of Concerned Scientists

Last month, 44 climate scientists from 15 countries wrote an open letter to the Nordic Council of Ministers highlighting the risk of a potential collapse of the Atlantic Meridional Overturning Circulation (AMOC), a critical ocean current system in the Atlantic Ocean. But what exactly would cause the AMOC to collapse?

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Twenty years of blogging in hindsight

Real Climate

It’s 20 years since we started blogging on climate here on RealClimate (December 10, 2004). We wanted to counter disinformation about climate change that was spreading through various campaigns. The Keeling curve, highlighted with the release of important climate reports and climate summits.

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Arctic Report Card 2024: How Did the Region Fare? Ask the Caribou

Union of Concerned Scientists

Grade F: First major vital sign shift in its report card Different factors are at play in terms of whether the Arctic is a net sink or source of carbon. On one hand, warming temperatures increased vegetation in the region with increased uptake of carbon dioxide. Methane releases were sustained as well. in Arc2024 ).

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Delays and Disagreements: The IPCC’s Struggle to Stay on Course

Union of Concerned Scientists

This past week, I attended the Intergovernmental Panel on Climate Change (IPCC) meeting in Hangzhou, China. In previous posts, Ive explained what the IPCC is, why this assessment cycle is crucial , and highlighted its role in climate action. Approving expert meetings and passing the budget. Whats Next for the IPCC?

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Delays and Disagreements: The IPCC’s Struggle to Stay on Course

Union of Concerned Scientists

This past week, I attended the Intergovernmental Panel on Climate Change (IPCC) meeting in Hangzhou, China. In previous posts, Ive explained what the IPCC is, why this assessment cycle is crucial , and highlighted its role in climate action. Approving expert meetings and passing the budget. Whats Next for the IPCC?

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Attribution Science and EPA’s Reconsideration of the GHG Endangerment Finding

Law Columbia

In the original finding, issued in 2009, EPA concluded that six GHGs carbon dioxide (CO 2 ), methane (CH 4 ), nitrous oxide (N 2 O), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), and sulfur hexafluoride (SF 6 ) threaten the public health and welfare of current and future generations. cars endanger public welfare.