This Land Was Your Land: A Closer Look at 80 by 50

Politicians from federal to local levels have joined in a pledge known as 80 by 50, an effort to cut carbon-dioxide emissions 80% by 2050. The pledges are long on fanfare but short on details. There is, however, a published literature that determines how to achieve so-called deep carbonization, and it involves a massive increase of renewable-energy sources, primarily wind and solar.

This report analyzes the extraordinary amount of land that would be needed to achieve 80 by 50 through wind and solar, the amount of additional high-voltage transmission capacity, and the growing resistance to local wind-energy projects. It also looks at what all this means for the populations of birds and bats, including endangered species.

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