Indeed. There are people who wail and lament about how we've passed a "tipping point" and the climate is doomed to catastrophic warming no matter how much our emissions are reduced at this point, and then when you bring up the possibility of studying geoengineering they snap back at you with a "but not like that" reflex.

Frankly, I think there are environmentalists who like the notion of inescapable doom. It gives them an "I told you so" feeling of victory, perhaps, or absolves them of any further effort. Or they've decided humanity is evil and deserves to be "punished." I don't know, it's just so wearying trying to deal with that reaction.

At the end of the day, when major governments are faced with the choice of collapsing under a wave of migrants and famine and taking a stab at spraying some aerosols into the upper atmosphere as a hail Mary, they're going to try the thing that isn't guaranteed disaster. Would be nice if we could do some studying of it first.