Environment Watch: Satellite video shows world's biggest iceberg, A23a, break free About the size of Rhode Island, the iceberg known as A23a got stuck in an ocean vortex this summer, spinning in place for months. Now, it's free, and heading back into open Antarctic waters. Manuela López Restrepo
Politics Biden set an ambitious new climate goal. Will it still matter under Trump? The Biden administration set a new climate goal for the U.S. The White House argues states, cities and corporations will continue the work, even as Trump plans to exit the Paris climate agreement. Jeff Brady
Climate Montana Supreme Court backs youth plaintiffs in groundbreaking climate trial Montana's supreme court finds that the state's failure to address climate change violates kids' right to a clean and healthful environment. Ellis Juhlin Steve Inskeep
National Dreaming of a white Christmas? There's hope, depending on where you live A few parts of the country may get a white Christmas in 2024, but the majority will not. And in the future, shifts in weather patterns driven by global warming may make them even less likely. Chandelis Duster
Climate Residents on every U.S. coast are looking for solutions for rising sea levels Communities along the three U.S. coastlines are exploring solutions for rising sea levels. They're fortifying, inventing and preparing to move. Halle Parker Katherine Hafner Ezra Romero
Climate Proposed rule requires utilities to find and fix more climate-warming leaks Natural gas utilities likely will face stricter federal regulations for their climate-warming methane emissions. Among the biggest sources of leaks is the meter outside a gas customer's home. Jeff Brady
Politics Washington voters approved a natural gas initiative. Lawsuit wants to blow it up Activists say the initiative misled voters. Backers say this lawsuit subverts the voters' will. Scott Greenstone
Science Orcas are hunting whale sharks. Is there anything they can't take down? Killer whales off Mexico have developed coordinated hunting skills to take down whale sharks, adding to their reputation as the ocean's top predator. Lauren Sommer
Environment Arctic tundra now emits planet-warming pollution, federal report finds Arctic tundra is releasing greenhouse gases into the atmosphere as hotter temperatures melt frozen ground and wildfires increase. Barbara Moran
Climate Making steel is a huge climate problem. Sweden is pioneering a solution Steel production is a major contributor to climate change globally. A new project in Sweden hopes to prove that can change. Reid Frazier
