After criticism over increasing costs and delays, the Wallis Annenberg Wildlife Crossing now has a Dec. 2 completion date — a note of optimism for a region reeling from fires and more.

Environmental groups sued the Trump administration on Monday over its approval of oil company BP’s ultra deep-water drilling project in the Gulf of Mexico.

Researchers say that dust storms cost the U.S. billions of dollars annually already, and could be getting worse and more economically devastating.

How much water does the United States have underground? After years of research, scientists have an answer, with a new, detailed national map of groundwater.

The National Park Service has reportedly blacklisted SFGate over critical coverage. L.A. Times reporters have also noticed changes in how the agency communicates.