World leaders expressed "deep disappointment" with the U.S. decision to withdraw from the Paris climate pact.
Once seen as too remote to harm, the deep sea is facing new pressures from mining, pollution, overfishing and more.
A new study finds a sharp increase in the risk of frequent flooding events in coastal areas in the U.S.
Falling solar and wind prices have led to new power deals even as investments decline in renewables.
America's Pledge is part of a growing effort by local governments to meet the U.S. Paris Agreement goals.
Even the modest rise in global temperatures to date have made India's already sweltering heat waves deadlier.
Hotspots of ocean acidification that persist year after year have been found along the U.S. West Coast.
Protecting open ocean from industrial uses is key to addressing climate change, a new study says.