Petroleum
and natural gas are expected to become scarce in the coming decades. Coal and
uranium offer longer-term energy supply, but they too will eventually run out.
In addition, all of these fuels produce environmental impacts that threaten our
health and quality of life. Renewable energy sources are clean and will not run
out in the foreseeable future. Because of their consistent long-term
availability, renewable energy resources are also inherently more stable in
price than fossil fuels. Many renewable energy technologies are modular and
portable, making them practical anywhere from a city center to a remote
mountaintop. And renewable energy is naturally decentralized, offering us a
safer and more robust alternative to today's giant-scale power plants and their
vulnerability to fuel price swings, natural disasters, and terrorism. |
