
Geothermal: Energy from the Earth
¥Heat in the upper 6 miles of
earthÕs crust contains 50,000 times the energy found in global oil and gas reserves
¥Plan B goal: increase geothermal
heating 5-fold to 500,000 thermal MW and geothermal electricity production
19-fold to 200,000 MW by 2020
¥
Photo
Credit: iStockPhoto / Animean
World
Cumulative Installed Geothermal Power Capacity, 1950-2010