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Yes definitely! A large impact can kick enough debris into the atmosphere to cool the earth. And people have floated the possibility of injecting basically a bu
by pmichaud 5y ago
Yes definitely! A large impact can kick enough debris into the atmosphere to cool the earth. And people have floated the possibility of injecting basically a bunch of “debris” to combat global warming.
The problem is that the system is chaotic and injecting and then maintaining the exactly correct level of debris that cools us off a bit without triggering a global crop failure or runaway ice age is effectively impossible, not to mention the air quality issues intrinsic to basically all versions of this scenario.
- deleted 5y ago[deleted]
- saiya-jin 5y agoMe naively thinks its better to ie put some nano foil which takes ie 5% of the light passing through on some stable orbit between earth and sun and have sun blocked without any further particulate pollution, which would end up falling on us while we breath it. It has benefit that its position may degrade on its own over time, or be just moved when convenient. Still a gargantuan engineering project, possibly out of reach for current technology to do reliably.
- fifi_conner 5y agoIt's completely doable, it just takes some multi-government commitment. A fleet of solar sails would be the cheapest and fastest, for example, it can accomplish this with great redundancy, whilst being steerable and powered using the very sun they'll block. The size of the sails would have to be huge, so a very interesting engineering problem to be solved.