Data from oceans, ice and the air all point to the same thing: rising invisible heat. What experiments are working, and what kinds of trials do we need to stop?

Cries of “It is warm!” rang out across the Seine on Saturday morning as Parisians jumped into the river — legally — for the ...

Sport is escapism, but it also happens to be doubling up as one of the best, most visible tools for climate scientists and activists who say the best time to act was yesterday (or, ideally, 50 years ...

As the growing tide of travelers strains housing, water and hot spots, protests and measures to lessen the effects of ...