A proposal to passively increase cloud cover over the southern ocean to reduce global warming by reflecting sunlight.
clipped from news.bbc.co.uk
The idea my colleagues and I are pursuing is to increase the amount of sunlight reflected back into space from the tops of thin, low-level clouds (marine stratocumuli, which cover about a quarter of the world’s oceanic surface), thereby producing a cooling effect.
In order to deploy our scheme and produce adequate cooling, we would need to spray sea-water droplets continuously over a significant fraction of the world’s oceanic surface, at a total rate of around 50 cubic metres per second.
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