International

"Every animal with a brain needs sleep — and even a few without a brain do, too. Humans sleep, birds sleep, whales sleep and even jellyfish sleep."

"After a 12-day crossing, and a hard slog through sea ice, the field work on this Antarctic expedition is ready to start."

"After a 12-day journey across the southern seas, the nearly 40 scientists aboard the icebreaker Araon on Wednesday reached Antarctica’s fastest-melting glacier, the Thwaites. An ambitious campaign to study the ice by air, under sea and with boots on the frozen surface is now underway.

"The Publications Division of the American Chemical Society (ACS) is proud to announce that Environmental Health Perspectives (EHP) has joined the ACS Publications portfolio. EHP is a globally respected journal with a legacy as a premier source for research findings at the intersection of the environment and human health."

"The Danish territory holds significant stores of oil, gas and minerals. But regulations and the extreme environment have kept the vast majority in the ground."

"President Trump announced on Wednesday that he was withdrawing the United States from the bedrock international agreement that forms the basis for countries to rein in climate change."

"A global crude glut complicates the president’s plans to “get reimbursed for everything that we spend” in the South American petrostate, whose leader was captured by the U.S. on Saturday."

"In his new book, Julian Hattem explores how migration can be a climate solution — not just for those who are able to move, but for their home communities as well."