To meet ambitious climate goals, L.A. needs more local water. A critical step is battling the ghosts of industry past — polluted groundwater that dates back to World War II.

Journalist Christopher Ketcham explains why we’re running out of time to save the West’s public lands and wildlife.

For 12 years, Janet Kessler has chronicled the behavior and family life of San Francisco’s growing population of coyotes as the city itself undergoes big changes.

New kinds of flood plans put nature back in charge, help populations adapt to a changing climate, reduce risk — and more.

Author John Temple takes a deep dive into the world of range wars and ‘patriot’ militia groups in the West, including the infamous Bundy clan.

A range of new tactics aim to curb cigarette butt pollution, including groundbreaking legislation that could hold tobacco companies accountable for their products’ waste.

A sweeping “circular economy” bill in the California legislature aims to drastically reduce plastic waste and boost domestic recycling.

A new film from Patagonia explores the threats to wild salmon and asks questions about how we value wild animals.

States that share the river’s water finalized a big agreement last month, but an even larger challenge determining the river’s future is just around the bend, expert John Fleck explains.

Most dam removals take years, often decades, of political, ecological and financial wrangling. A new book, Same River Twice, looks at three dam removals and what made them possible.