Archives par mot-clé : Warming

Wide-scale US wind power could cause significant warming

by James Temple, October 4, 2018 in MITTechnologyReview


Wind power is booming in the United States.

It’s expanded 35-fold since 2000 and now provides 8% of the nation’s electricity. The US Department of Energy expects wind turbine capacity to more than quadruple again by 2050.

But a new study by a pair of Harvard researchers finds that a high amount of wind power could mean more climate warming, at least regionally and in the immediate decades ahead. The paper raises serious questions about just how much the United States or other nations should look to wind power to clean up electricity systems.

Highlights

  • Wind power reduces emissions while causing climatic impacts such as warmer temperatures
  • Warming effect strongest at night when temperatures increase with height
  • Nighttime warming effect observed at 28 operational US wind farms
  • Wind’s warming can exceed avoided warming from reduced emissions for a century