Smoke from the 2015 fires killed over 100,000 people.
Bob Inglis clings to hope that the real estate developer will break the GOP's fever on global warming.
A new report helps us visualize just how smoggy American cities would be without air pollution regulation.
And that's bad news when it comes to climate change.
But the 27 states still plan to push ahead with their lawsuit.
L.A. City Council pushes the city to go all renewable.
Much of NYC will be under water in 100 years -- but that doesn’t necessarily mean we should make a hasty retreat from the coastlines.
As saltwater inundates their roots, coastal trees are dying off.
Meteorologists are divided.