The first test of a project backed to spray millions of tonnes of chalk into the stratosphere, in an attempt to ‘dim the sun’ and cool the Earth, could happen in June.
Harvard University experts will test the system by sending a large balloon 12 miles above the Swedish town of Kiruna and have it drop 2kg of chalk dust into the stratosphere. Continue reading “Bill Gates wants to spray millions of tonnes of CHALK into the stratosphere to reflect sunlight and slow global warming”
