Tribal activists fear that permits to move the Keystone XL forward will bring not just economic and environmental impacts.

Mounting evidence proves that natural-gas and oil extraction threatens wildlife and ecosystems — much as it harms human health.

The public has long supported a state program to provide water for wildlife, but now human threats, including border-wall construction and climate change, are making a bad situation worse.

Successful conservation means more sharks, which is great for the health of the ocean but could also be problematic in a few important ways. Here’s how experts say we should prepare.

From Bogota to Baltimore climate strikers turned out for the first of a week of events to push for action on climate change.

In warming Alaska, Pacific walruses and Inuit craftsmen find themselves facing new and intersecting threats.

Will the Trump administration’s recent changes to the implementation of the Endangered Species Act complicate the delicate strategy of grizzly restoration in this remote Washington wilderness?

The most widely used class of insecticides is dangerous for much more than its intended target, new research finds.

A new study finds that fake science videos get millions of hits on YouTube. But scientists can help fix misinformation about climate change and other scientific topics.

Returning prescribed fire to California forests is the focus of a new climate-adaptation plan from the Karuk Tribe, but the federal government will need to play big role.