"A rescue mission to save Florida corals from a mysterious disease that’s devastating local reefs arrived in Miami on Friday with 400 specimens that may be used as a gene bank to potentially breed new colonies and repopulate reefs in the future."

"The Environmental Protection Agency is moving forward with a plan to sharply reduce and ultimately phase out experimental testing on lab animals. In an undated internal memo sent in late June to assistant administrators, EPA chief Andrew Wheeler explained that the agency will cut its funding for experiments on mammals in half by 2025."

"Leaders from the Group of 20 nations renewed their vow to take action to curb climate change on Saturday, as the United States once again stood apart and at odds with the rest of the world."

"New data suggests that the safety threshold for PFOA in drinking water should be as low as .1 parts per trillion, according to the nation’s top toxicologist."

"At the Marine Biological Laboratory in Woods Hole, Mass., there's a room filled with burbling aquariums. A lot of them have lids weighed down with big rocks."

"At the end of a week in which the Trump administration rolled back Barack Obama’s Clean Power Plan, Mike Pence declined repeated invitations to say the human-induced climate crisis is a threat to US national security."

"The Trump administration has refused to publicize dozens of government-funded studies that carry warnings about the effects of climate change, defying a longstanding practice of touting such findings by the Agriculture Department’s acclaimed in-house scientists."

"EPA plans to move staff from a Houston regional laboratory to another facility 400 miles away."

"Research is raising serious concerns about the impact of climate change on the world's tiniest organisms, and scientists say much more attention is needed."