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letmetweakit | 1 month ago

I’m far from being an expert but geoengineering gives me the shivers. Dumping boatloads of chemicals into the atmosphere, a lot can go wrong.

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FloorEgg|1 month ago

Same. Also no expert.

My intuition is that if we carefully reverse what we have been doing it's a lot less scary to me than rolling dice on adding something new.

the geoengineeing strategies that make sense to me are ecosystem restoration, not novel climate manipulation.

- converting solar energy to reforestation via automation

- solar powered robots digging demi-dunes in Sahel

- industrial CO2 capture, economically extracting the CO2 and converting it into something more valuable and environmental sustainable

In other words, using scalable and novel technology to carefully reverse the changes we have made rather than adding to them. In other words, undoing the damage we have done by targeting and repairing the damage itself instead of the consequences.

tosapple|1 month ago

Weapon of mass de-desertification.

You can spray it from anywhere, source it from god knows where. What flavor of snowcone do you want this week?

red75prime|1 month ago

Fortunately, we have volcanoes that were doing it in an uncontrolled manner for a long time. I think we have survived.

counters|1 month ago

Well, the problem is that what we would need to geoengineer the climate would be equivalent to a continuous, yearly sequence of large volcanic eruptions. So the analogy starts to breakdown, because the handful of examples we have of these sorts of periods with high volcanic activity were actually pretty bad for civilization at the time:

1. 530's-540's Cluster - contemporaneous historical notes over both the far East and Western civilizations clearly illustrate widespread famine due to crop failures, most likely due to the cooling that this period sustained (sometimes called the "Little Antique Ice Age"). The famous Plague of Justinian also occurred in this period, and was likely exacerbated by famine. There's also the Norse "Fimbulwinter" mythos - a period preceding Gotterdamurang - likely inspired by this period.

2. 1250's-1280's Cluster - Suspected to have triggered the "Little Ice Age", and triggered contemporaneous crop failures in both South America and Europe. 1258 is known as one of the "Years Without A Summer."

3. 1808-1815 Tambora Cluster - Culprit behind the even more well-known "Year Without a Summer" in 1816, which produced one the more recent great famines in Western Europe in Switzerland. Agriculture-induced famines led to a wave of civil unrest across Europe.

So yeah - we obviously survived these periods. But I wouldn't exactly cite them as endorsements for any sort of geoengineering activity analogous to vulcanism.

fenwick67|1 month ago

conversely, the mechanism by which the KT impactor killed off the dinosaurs was atmospheric

whimsicalism|1 month ago

we already dump boatloads of 'chemicals' into the atmosphere, this is how we got into this whole mess.