Slide Show: The World’s 10 Largest Renewable Energy Projects: Scientific American

If renewable energy is going to be a bigger player and have a significant impact in cutting the greenhouse gas emissions from power plants that are driving climate change, it’s going to have to grow quickly. According to Princeton University scientists Stephen Pacala and Robert Socolow’s “wedge” strategy of climate change mitigation—which quantifies as a wedge on a time series graph various sets of efforts to maintain flat global carbon emissions between now and 2055—at least two million megawatts of new renewable energy will have to be built in the next 40 years, effectively replacing completely all existing coal-fired power plants as well as accounting for increases in energy use between now and mid-century.

Slide Show: The World’s 10 Largest Renewable Energy Projects: Scientific American.