A new book explains why policymakers nearly 100 years ago chose to ignore the best science on the Colorado River’s flow — and the dangers if we repeat their mistake.

We’ve made little progress in preparing our communities and vital ecosystems for storms and sea-level rise, but there are tools we can use if government agencies and nonprofits take action.

The oil industry has long fought, and will continue to fight, against energy transformation. Here’s how we can fight back.

The nongovernmental panel of experts found that particle pollution regulations aren’t protecting public health, but that's not the only worrying trend at EPA.

Airplane emissions are a big deal, but do they outweigh the chance to do a better job covering climate change and extinction? And is the anxiety over flying always productive?

A database lets U.S. residents get quick information about water contaminants and health threats, but there are some bigger issues to consider, too.

It may not seem charismatic, but Scotland’s Manx shearwater flea could be a symbol that no species is too small or strange to deserve saving.

Regulatory rollbacks are just one small part of the Trump administration’s efforts to limit the effectiveness of the Environmental Protection Agency, but there’s a whole lot more, says a career agency staffer.

Revoking California’s ability to set stricter air-pollution standards also misses three important benefits to California and the nation.

A dire report about our climate and oceans underscores the great need for action. A global oceans treaty could help save the future.