magic9mushroom
If you're going to downvote me, and nobody's already voiced your objection, please reply and tell me
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User ID: 1103
magic9mushroom
If you're going to downvote me, and nobody's already voiced your objection, please reply and tell me
23hr ago
The amount they're talking about doing, to cool Earth by over a degree, is more than any volcano in recorded history, and the eruptions that even came close caused worldwide famines (most notoriously, the Year Without a Summer). As such, I am not assuaged.
As I've said, I agree with this logic when restricted to longwave. Removing greenhouse gas from the atmosphere with air-capture is indeed fine.
The problem is that reducing shortwave - i.e. blocking sunlight - doesn't just cool the planet. Sunlight is also needed for photosynthesis, which has massive indirect effects through the carbon cycle and, more directly, is how we grow food.
We can bound the harms of global warming pretty well. The harms of global dimming are much harder to bound, particularly at the unprecedented levels needed to do multiple degrees of cooling via dimming. You fuck with sunlight at your peril.
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