National Academies of Sciences, Engineering, and Medicine
The National Academies: Our Energy Sources: Natural Gas
Energy production from natural gas is less destructive to the environment than energy produced from coal, but it is still produced from fossil fuels. While advances have been made in reducing its detrimental effects, our resources are...
Energy for Sustainable Development
Kids and Energy: Hydro Energy
Hydropower is a clean, renewable and reliable energy source which converts kinetic energy from falling water into electricity, without consuming more water than is produced by nature. Quite simply the oldest method by which renewable...
Other
The Sustainable Scale Project: Ecological Footprint
The Ecological Footprint is rooted in the fact that all renewable resources come from the earth. It accounts for the flows of energy and matter to and from any defined economy and converts these into the corresponding land/water area...