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But, sir, every plant in town will die. Owls will deafen us with incessant hooting. The town sun dial will be useless!

Yeah, more ideas to block the sun. I love these, you know. The scary thing is that these are actual proposals from serious people. This batch, for example, come to you courtesy of the Technology Review at MIT. Not your usual tinfoil hatters, not some stoners having a eureka moment, but from people who will probably be in positions to implement some of these ideas. So let's see what these mad scientists are dreaming of.

And for fun, I'll toss in a ringer. You guess which one of these suggestions is NOT an actual proposal being looked at to save the world.

A. a really big mirror between the Sun and Earth, manufactured on the moon
B. clouds of trillions of wafer-thin, butterfly-light lenses
C. reflective films laid over the planet's deserts
D. fertilizing the seas with iron to create vast blooms of plants that would then consume tons of carbon dioxide and, as the plants died, drag the carbon into the sea
E. suspension of tiny, harmless particles of diatomaceous earth about 80,000 feet up in the stratosphere
F. wind powered unmanned cloud seeding vessels spraying sea-water droplets continuously over a significant fraction of the world's oceanic surface
G. creating vast cooling systems to preserve glaciers to maintain reflective (albedo) effects



Oh ok, ok. I know that was too easy. You all guessed G. You're right. The vast cooling systems to preserve glaciers are just to keep ski resorts in the Alps going- not to save the world, ha ha ha.

Yeah, I feel a little sick now too.
LINK to MIT Technology review article
LINK to BBC article about the cloud seeding ships
LINK to article mentioning air conditioning glaciers for skiiers.
ps. I use diatomaceous earth as an organic pesticide- never thought NASA would want to pump the skies full of it.

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