California prisons remain unprepared for extreme heat

The possible heat-related death of an inmate at a prison in California's Central Valley this week is focusing renewed attention…

California heat death toll rises

As California heads into a dangerous holiday heat wave that will blanket millions of residents in triple-digit temperatures, state and…

Deep sea mining divides environmentalists

As diplomats from around the world gather in Jamaica next month to discuss international guidelines on deep-sea mining, environmental activists…