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The likelihood of unilateral solar geoengineering

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Re: The likelihood of unilateral solar geoengineering

#121
Probably too late with this comment, but from today's WSJ: "Scientists Resort to Once-Unthinkable Solutions to Cool the Planet"

Lends some support to the author's thesis. A little unsettling that the reflective SRM material in the WSJ article isn't sulfur (apparently) but something proprietary of undisclosed composition.

https://www.wsj.com/science/environment/geoengineering-proje...

Re: The likelihood of unilateral solar geoengineering

#123
post #119

Earlier quoted context omitted.

What do sulfur damages to crops cost?

And can we breathe that? At some point it's gonna be noticeable, right?

sulfur is one of those things people can detect in ppm... so yeah maybe

we screwed up the earth so much the only way to keep it livable to is to make it smell like farts

Re: The likelihood of unilateral solar geoengineering

#124

This story about urban albedo interested me earlier [0]. Painting roofs and roads white, and simply having more green parks instead of paved areas would actually make a difference. [0] https://news.ycombinator.com/context?id=39356361

Urban area is around half percent of earth area (2 mln km2 vs 510). Improving albedo there may have some local effect, but unlikely to contribute significantly to climate change mitigation.

Solar irradiation is around 1000 W/m2, and greenhouse gas forcing is about 2.5 W/m2, so it's not that outlandish.

Re: The likelihood of unilateral solar geoengineering

#125

Earlier quoted context omitted.

I love everything about The Matrix, except that the core premise makes no sense. Humans are not an energy source; at best we (very inefficiently) transform energy from one form to another. If we “scorched the sky,” humans would be at least as screwed as the robots, unless we’re getting all our energy (and tons more since we’d have to move all agriculture indoors) from nuclear or such, but in that case, what on earth…

Originally humans were used as computers, not energy source, which made more sense. Some brilliant mind changed it at some point during production.

If they were used as super efficient neural nets that compute by dreaming, it would have been amazing
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