Marine mammals like whales and dolphins lost the function of 85 genes in the transition from land to water.
Ice and oceans worldwide are already being reshaped by a changing climate, affecting everything from weather to fisheries to coastal communities.
President Trump is wrestling with the state of California over who gets to define auto emissions standards for carmakers: California or the federal government?
More and more industries are responding to climate change. Will fashion brands follow suit?
Florida has one of the largest nursing home populations in the country. But it’s struggling to meet new preparedness guidelines.