by A. Bright-Paul, October 22, 2018 in ClimateChageDispatch
As the Earth rotates on its own axis, one-half of the Earth is cooling while the other half is warming up.
So the Earth is warming and cooling daily and the temperature is changing 3,600 times every hour in every location all over the world, as there are 3,600 seconds in every hour.
As the Earth is traveling around the Sun in an ellipse at 66,000 miles per hour and is tilted and wobbling as it spins, so the Earth has seasons, as the angle to the Sun varies.
So the temperatures in the spring and summer are usually warmer than in the autumn and winter when temperatures decline.
So there is a massive number of different temperatures over the whole Earth, constantly changing and always in flux.
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
La géologie, une science plus que passionnante … et diverse
