Wind and solar are key, but so are family planning and plant-based diets.

A new study of North American songbirds reveals an ecosystem falling out of balance.

Many species could go extinct if the border wall is built, experts warn.

In the age of Trump, local activism matters, says GreenLatinos president Mark Magaña.

Dangerous times call for a new kind of environmental news site.

Conservation requires optimism. These experts share how they maintain it.

A conservation success story faces a new threat that could undo the heroic efforts of the past.

Government emissions tests have drastically underestimated the pollution created by diesel trucks, cars and other vehicles, according to a study