> satellites to cool down the planet?
2% shade stationed at L1 is a 20 million tonne umbrella 1.5 million km above ground.
2% shade stationed at L1 is a 20 million tonne umbrella 1.5 million km above ground.
I feel like this option is not seriously considered enough.
https://www.washingtonpost.com/climate-solutions/2021/04/16/...
https://e360.yale.edu/features/urban-heat-can-white-roofs-he...
Edit: the point is that we can do this now and we can do it incrementally.
In northern latitudes it would be nice to be able to change the albedo of the roof to reflect energy in the summer and absorb it in the winter (although the effect in winter will be muted in places where snow accumulates on the roof.) I wonder if there exists anything like that.