A brother and sister were negotiating Christmas presents with their parents. The boy asked for five dollars per day for the 12-day holiday, prompting nods of approval. The girl asked for just 50 cents ...

Although government action has been insufficient when it comes to putting the global economy on a path to net-zero carbon, market mechanisms are emerging that promise to drive major progress. We call ...

Researchers have discovered dozens of new methane seeps littering the ocean floor in the Ross Sea coastal region of Antarctica, raising concerns of an unknown positive climate feedback loop that could ...