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The Marshall Fire destroyed more than 500 homes in Louisville, Colo., in December. Homeowners who want to rebuild face a new set of green building codes. To some, they look like an expensive obstacle.

David Perlman, age 98, talks with Steve Inskeep about his career as a science writer as he gets ready to retire from the San Francisco Chronicle after 77 years.

As Brazil hosts the G-20 summit, it is likely President Biden's last international gathering. The meeting's agenda may be overshadowed by the incoming Trump administration.

The Biden administration announced an emergency plan to save lakes Mead and Powell from drying. It gives Secretary of Interior Deb Haaland authority to cut water use of the Colorado River.

People in D.C. and other cities are starting to see periodical cicadas. The red-eyed flying insects known as Brood X emerge every 17 years.

Democrats say voter protections, police reform, climate change — virtually the entire Biden agenda — will be abandoned if the Senate does not abolish the filibuster.

The developer of the Keystone XL oil pipeline has abandoned the project after President Biden revoked a permit. It was a major flashpoint in the debate over fossil fuels' role in climate change.

The National Weather Service predicts areas on the East Coast could reach 100 degrees Thursday, with triple-digit temperatures in the Pacific Northwest, too. Relief isn't expected until the weekend.

Federal agencies are doubling down on stopping extreme wildfires. They're also limiting the use of fire to help with fire prevention, which is concerning some fire scientists.

Much of California is in the grips of extreme or exceptional drought. But the state may soon be blanketed by record levels of snow, after a series of storms finish parading through the western U.S.