At the same time some decry environmental regulation as a drag on the economy, the slow recovery has sapped environmental organizations of donations, leading to layoffs and changes in leadership.

An early snow storm in the northeastern part of the U.S. has left many without power... or Halloween.

It has been a big year for natural disasters, from the tsunami in Japan to floods in Australia. And that means a year of big losses for insurance companies.

We know what causes hurricanes and how to deal with their symptoms, but not actually how to prevent the storms from happening in the first place. An invention firm may have come up with a 'hurricane vaccine.'