![](http://www.earth-policy.org//images/uploads/book_images/Plan_B_4thumb.jpg)
By Lester R. Brown
As fossil fuel prices rise, as oil insecurity deepens, and as concerns about climate change cast a shadow over the future of coal, a new energy economy is emerging. The old energy economy, fueled by oil, coal, and natural gas, is being replaced by one powered by wind, solar, and geothermal energy. [...]