Environment and Climate

Solar energy impacts on the environment and greenhouse gas emissions.

Nasa photo

How much land would it take to power the U.S. with solar?

According to a 2008 analysis by the National Renewable Energy Laboratory, supplying a


Could solar really meet most of the world's energy needs?

Today, solar energy provides less than one percent of the world's energy, but that share could grow considerably with the right public policies and continued price reductions.


Do solar panels contain toxic chemicals?

The most commonly utilized solar technologies use inert materials found at every building site including silicon (glass), aluminum (frame) and copper (wiring).


Will climate change hurt the productivity of solar panels?

While solar energy is one of the most important tools available to transition away from the fossil fuels that are causing climate change, do warmer weather conditions ironically reduce the ability