Ice reflects sunlight, water absorbs it. Were losing our ice and the heating effect, in theory, is accelerating. Why cant we build a reflective surface in its place to help offset some of the heating?
In: Earth Science
This is why: https://www.youtube.com/watch?v=0qksm5cRtcU
In all seriousness, it would be insanely costly to build and maintain. There’s also the problem of who would be footing the bill for it (do all countries contribute? What if some countries decide not to pay?), and who would be paying to constantly maintain it.
There would also likely be unforseen consequences of doing this, though probably not as dramatic as the example in the video.
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