Mira Rojanasakul

Once the dominant source of energy in the United States, today, 401 coal units supply roughly 16 percent of the nation’s grid.

New data from a constellation of satellites 250 miles above Earth’s surface shows how solar and wind have taken off in recent years.

A major reason is too much groundwater is being pumped out, new research shows, threatening buildings and infrastructure nationwide.

Abandoned coal mines had left waterways acidic and rusty orange. Local residents are cleaning them up, and recovering valuable minerals in the process.

Changes in the insurance market have started to affect home prices in the most disaster-prone areas, new research finds, pushing some homeowners’ finances to the breaking point.

A collapse of the Thwaites Glacier in Antarctica would sharply accelerate sea-level rise in coastal cities.

A record-mild winter and blistering spring heat will mean higher risks of water shortages and wildfires in the months ahead.

We visited researchers seeking ways to make homes safer. They set a lot of fires.

Levels in Lakes Mead and Powell have not been so low since 1957, underscoring a water crisis that plagues seven states that rely on the Colorado River.

With air and sea surface temperatures already breaking records, this year’s episode is on track to be the strongest in living memory.