The indelible link between climate change and social unrest in the Arab world

A new website aims "to collectively document the whole food system"

Conflict over resources could cause global instability, says U.N. official

Stirring portraits of sustainable farmers in the Pacific Northwest

Stunning images of the Ice Continent

But Americans still pay little for fuel compared to most.

Environment minister calls for checks on development.

In the hands of Jamison Sellers, salvaged wooden pallets become stunning pieces for the home.

Psychedelic satellite pics of planet earth.

Desolate depictions of the American landscape.