By Adam Mahoney, Capital B

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By Bob Berwyn

DUBAI, United Arab Emirates—As negotiators at COP28 debate which verbs in the final documents would indicate the correct level of urgency, scientists at the global talks delivered a simple, dire message: Act now, or trigger climate tipping points with serious risks to the lives and livelihoods of billions of people.

By Bob Berwyn

DUBAI, United Arab Emirates—Under a blanket of petro-smog, more than half the 198 countries  in the United Nations Framework Convention on Climate Change called for a fossil fuel phaseout on the second day of COP28, marking a turning point after 27 years of climate negotiations.

By Lee Hedgepeth

This article has been updated.

By Amy Green

CEDAR KEY, Fla.—For this island fishing village along Florida’s Gulf Coast, Hurricane Idalia wrought some of its worst damage not on land but offshore.

By Bob Berwyn

Research released this week raises new questions about how much more Earth may warm, or cool, if and when human carbon dioxide emissions zero out. Best estimates to date suggest that the global surface temperature would stabilize within a few decades, but the new paper in the journal Frontiers in Science examines the uncertainties around that conclusion, including how the planet’s key carbon dioxide-absorbing systems, like forests and oceans, will respond. 

By Nicholas Kusnetz, Lee Hedgepeth, Amy Green, Phil McKenna, Dylan Baddour, Aydali Campa, Wyatt Myskow, Marianne Lavelle and Kristoffer Tigue

If there is one overarching message from the nation’s latest climate assessment, it is that nowhere will be spared. 

By Marianne Lavelle, Katie Surma, Kiley Price, Nicholas Kusnetz

WASHINGTON—In a sprawling, multimedia report that stresses it is not too late to act, the Biden administration on Tuesday delivered a sobering catalog of climate change’s impacts in every corner of the United States—from battered coasts to parched cornfields to blazing forests. It measures the human toll, including at least 700 people dying of heat-related illness each year, in a nation warming 60 percent more quickly than the world as a whole.

By Kristoffer Tigue, Georgina Gustin, Liza Gross, Victoria St. Martin

WASHINGTON—Whether it’s the likelihood of living in a flood zone, lacking access to parks or having fewer resources to recover from a destructive storm, the consequences of climate change are not experienced equally in the United States. That’s a key message from some of the nation’s leading climate scientists, public health experts and economists in a landmark federal report released Tuesday.

By Amy Green

ORLANDO, Fla.—It used to be the water spilled over Lake Okeechobee’s southern shore, flowing eventually into the sawgrass prairies of the Florida Everglades. For thousands of years the marsh vegetation flourished and died here in an endless cycle, the plant remains falling beneath the slow-coursing water to form a rich layer of organic soil called peat.