World Energy in 2040.

What to make of change on an overheating planet.

Don’t for a second imagine we’re heading for an era of renewable energy.

Field notes from a drying west.

A severe drought in the Southwest is devastating crops and farm communities—and sending a warning about climate change.

Ken Ward and Jay O'Hara are reminiscent of the human-centered, Quaker-inspired anti-nuke founders of Greenpeace.

Saving the land one footfall at a time.

Colleges, pension funds and foundations together have trillions of dollars that could be invested in solutions to climate change.

Climate change and its political repercussions.

What would it mean if we were to walk in his footsteps?