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Seven countries account for 60 percent of the world's global warming, according to a study released last year.

Following the approach we often see from companies marketing products before big storms, Nike focuses on climate change science in the promotion of its latest line of base-layer apparel. Is it a sign that more Americans are taking climate change seriously? Don’t get your hopes up.

In ordinary ways, it's erasing some of the last century's impressive progress toward eliminating preventable illnesses and deaths.

When hard science isn't enough, what can be done?

The world is warming—and record-cold winters are just another symptom.

Legislative opposition to climate change isn't just keeping us from having a proper conversation about the problem. It's destroying our ability to act.

Say goodbye to that pleasant springtime drizzle. As the climate changes, get ready for more torrential downpours and more droughts.

It’s hard to overstate just how serious a threat our energy crisis is to every aspect of our current way of life. But the problem is hidden from view by oil and natural gas production numbers that look and feel just fine.