After months of drought, the federal government declared 213 counties in Texas natural disasters.

Even if wildfires stay clear of Los Alamos, burning trees and heated soil contaminated with residual radiation from old nuclear tests could be a problem.

Here's the scientific explanation for why extreme weather can be connected to climate change.

California will push back its cap-and-trade program to 2013.

San Francisco composts. San Francisco banned plastic bags. San Francisco is just the greeeeenest, isn't it?

What to do with a four-legged Israeli chicken?