A new bipartisan bill would put an end to the practice of “fire borrowing” to deal with the growing problem of mega-fires.
A new study found air pollution around Alberta's tar sand operations to rival a major city.
See photos of the stunning UNESCO World Heritage sites that are under threat.
He's like reverse Erin Brockovich.
They’re racing the clock against a possible Trump presidency.
You just have to look a little deeper to find them.
The country has been a critical leader in fighting global warming, but now it's distracted by political upheaval.
As Lake Mead hits a record low, Nestlé eyes nearby Phoenix as a prime spot to bottle water.
A new study links bad air quality to increased risk of heart disease.