Re: Clima, Riscaldamento Globale ¶
By: pana on Venerdì 01 Marzo 2019 07:35
very interesting, microcristlalli di sale
costerebbe solo 200 milioni di dollari ogni anno
BBC Future reports on a geoengineering technique called "marine cloud brightening" that makes marine Stratocumulus clouds -- which currently reflect almost 30% of total Solar radiation back into space -- whiter, causing them to reflect more sunlight away from earth. Professor Stephen Salter of Edinburgh University, a well-known 1970s wave and tidal power pioneer, has designed an unmanned hydro-foil ship, computer-controlled and wind-powered, which pumps an ultra-fine mist of sea salt toward the cloud layer, causing it to turn white: "'Spraying about 10 cubic meters per second could undo all the [global warming] damage we've done to the world up until now,' Salter claims. And, he says, the annual cost would be less than the cost to host the annual UN Climate Conference -- between $100-$200 million each year. Salter calculates that a fleet of 300 of his autonomous ships could reduce gl