Scientists and advocacy groups criticize new guidelines that could exclude some academic studies during toxicity reviews.

Can clay particles, ozone, or phages stop the algae bloom that is killing wildlife and posing a health risk to humans?

Reshaping how the Endangered Species Act is implemented is seen as a way to streamline bureaucracy, but critics of the plan say it will leave species at greater risk of extinction.

Opponents of the guidelines, which would bar results of many public health studies from use in policy making, include scientific and healthcare organizations.

An investigation by Politico finds the agency has been sitting on an assessment of formaldehyde’s cancer risks for a year and a half.

The embattled Environmental Protection Agency Administrator resigns amid persistent questions about his ethics and use of taxpayer dollars.

Five newly identified species of snakes suck the mollusks right out of their shells.  

The surviving animals may have evolved genes that provided an advantage in fighting the disease.  

A species of water flea in northern Belgium that helps keep algae in check is growing smaller and less abundant in urbanized areas.