Southern Resident killer whales have a shortage of food and an overdose of deadly pollutants.

An atrocity of mercury poisoning began in the 1930s. Does a new treaty go far enough?

A new study reveals that air pollution from industrial sources increases levels of five different stress hormones.

In spite of 15 years of goal-setting, average nitrogen levels in the Mississippi have not declined.

Funding to forecast toxic algae blooms could be at risk, putting lakes and water supplies in danger.

Just two weeks after France said it will no longer allow the sale of gas- and diesel-powered autos after 2040, the United Kingdom has followed suit. In addition, the UK announced it is also exploring ways to tax the dirtiest vehicles on the road as a way to lower current air pollution levels in the most-affected local areas. About half of all cars registered in the UK each year are diesel-powered; electric and hybrid vehicles, although a growing market, still represent a tiny fraction of all new cars sold there. Experts predict that should start to shift in the mid-2020s as prices become more competitive. 

Oceanic plastic poses an increasing threat for these top predators.

What better way to understand the dangers of plastic pollution than by traveling on a ship made out of garbage?

A new report finds that malnutrition, unsafe water, drought, floods and other environmental dangers affect hundreds of millions of people worldwide.

Calls to bring power back to states ignore the struggles states had regulating the environment.