Dr. Warren Washington, who helped pioneer climate modeling, has seen science advance, even as policies to meet our climate challenges have lagged.

What border communities really need are solutions to address economic, health and climate problems — and the mesquite tree can help.

President Trump’s invocation of a national emergency to build his border wall is worrying and “illegal,” according to scholars.

The deeply unpopular plan would benefit a few rich oil companies while threatening people, wildlife and the climate.

Elected officials and nonprofits groups are wondering why federal workers are being called back from furlough for nonemergency work that aids industry and hunters.

Scientists have found that many inland waterways are getting saltier, and that’s helping to mobilize heavy metals and other chemicals from the soil, creating potentially dangerous combinations.

Experts warn that the shutdown has furloughed or hobbled personnel responsible for diagnosing and detecting wildlife diseases.

New photographs reveal that the National Butterfly Center in Texas is also home to an amazing array of 200 bee species — some of which exist nowhere else in the United States.

It’s going to be a rough year, but we’ll also see some progress.

We’ll have to contend with new limits to the Clean Water Act, growing threats from climate change and fixing our aging infrastructure.