It will come as a surprise to no one that liquid fossil fuel is a finite resource. Sooner or later, all the Earth's oil deposits will dry up, and we'll be completely dependent upon alternative sources of energy. While many have embraced traditional solar power, wind power, and hydro power, others are looking ahead to even cleaner and more efficient alternatives. Here are the ones that hold a great deal of potential.
Infographic by: futurism.com
Infographic by: futurism.com