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We Could Brighten Clouds to Cool the Earth

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Re: We Could Brighten Clouds to Cool the Earth

#2
Hmm... I think we should approach such things very carefully. Doing this at a scale where it actually affects global warming at a meaningful level, we'd have to spray a lot of particles in the air that might hurt us in other ways. Absorption by insects and polluting the food chain, causing local climate effects by remote areas being covered in these etc.

Our ecosystem is very complex and I worry about things being viewed as a "quick fix" possibly digging a deeper hole for us.

Re: We Could Brighten Clouds to Cool the Earth

#4

Hmm... I think we should approach such things very carefully. Doing this at a scale where it actually affects global warming at a meaningful level, we'd have to spray a lot of particles in the air that might hurt us in other ways. Absorption by insects and polluting the food chain, causing local climate effects by remote areas being covered in these etc. Our ecosystem is very complex and I worry about things being vi…

With marine cloud brightening, which is what this article is about, they spray seawater into the air. They spray it over the ocean. It falls back down pretty quickly, since it's just water, and it doesn't genetically modify anything, because it's just water.

Re: We Could Brighten Clouds to Cool the Earth

#7

Hmm... I think we should approach such things very carefully. Doing this at a scale where it actually affects global warming at a meaningful level, we'd have to spray a lot of particles in the air that might hurt us in other ways. Absorption by insects and polluting the food chain, causing local climate effects by remote areas being covered in these etc. Our ecosystem is very complex and I worry about things being vi…

This seems to be the common sentiment, we don't really have an appetite for geo engineering yet. I think it'll take many more climate related catastrophes before we start to accept that engineering our way out of this problem is necessary.

Re: We Could Brighten Clouds to Cool the Earth

#10

Hmm... I think we should approach such things very carefully. Doing this at a scale where it actually affects global warming at a meaningful level, we'd have to spray a lot of particles in the air that might hurt us in other ways. Absorption by insects and polluting the food chain, causing local climate effects by remote areas being covered in these etc. Our ecosystem is very complex and I worry about things being vi…

With marine cloud brightening, which is what this article is about, they spray seawater into the air. They spray it over the ocean. It falls back down pretty quickly, since it's just water, and it doesn't genetically modify anything, because it's just water.

I imagine there would be an extremely large energy cost to spraying such boatloads of water in the air.
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