Famed husband and wife photo duo interpret the interplay between culture and environment

Small gains in energy efficiency can create huge savings. So why isn't everyone doing it?

Photo project asks the public to document environmental issues and everyday life

Why cutting carbon emissions is good for the economy

A short selection from one of our favorite photographers

The most explosive volcano photos of 2011, courtesy of The Atlantic

A sticky and cozy Christmastime treat, from Jennifer Reese

New discovery could double solar electricity output

A selection of the best environment photos of 2011

Terrific travel pics from Bay Area photog