California may be a leader in climate policies, but much of its abundant oil reserves are nearly as carbon-intensive to extract and refine as Alberta tar sands crude.

If you classify Rocky Mountain Institute as a think tank, you're half right

After a half-century of conflict, Colombia is regaining control of vast biologically rich areas that had been havens for rebel groups.

Sunsets here in the San Francisco Bay Area have been remarkably stunning the past few weeks due to the fires, several of which are still smoldering in Napa and Sonoma counties, contributing to these dense crimson sunsets.

Christiana Figueres is the former executive secretary of the United Nations Convention on Climate Change (UNFCCC).

You know you’ve crossed a special threshold in sustainable design when one of your biggest pet peeves is people confusing biophilia and biomimicry.

Africa has long looked to fish farming to help feed its burgeoning human population.

Italy was once not a nation, but a collection of powerful city states, ruled by family dynasties and independent from their formal sovereigns.

As international negotiators convene in Bonn, they must confront the stark conclusion of a new UN report: The national commitments under the Paris Agreement will not come close to providing the emissions reductions needed to avoid the most severe effects of climate change.

Look at the people around you. Look at the people across this amazing country.