Scientists have been warning about global warming for decades. It's too late to stop it now, but we can lessen its severity and impacts.

The environment is so fundamental to our continued existence that it must transcend politics and become a central value of all members of society.

Treaties, agreements and organizations to help settle disputes may be necessary, but they often favor the interests of business over citizens.

People.. especially people in positions of power.. have invested a tremendous amount of effort and time to get to where they are. They really don't want to hear that we're on the wrong path, that we've got to shift gears and start thinking differently.

Each of us now has 2.27 kg (5 lbs) of plastic embedded in our bodies.

More than any other time in history, the 1990s will be a turning point for human civilization.

I can't imagine anything more important than air, water, soil, energy and biodiversity. These are the things that keep us alive.