The problem is, if we wanted to bring the temperature back down by adding particulate into the atmosphere, we can never stop. Sulphur fuel in ships was a small amount, but to truly save lives I fear we would have to geoenginer the planet. And once we have opened that door there is no going back. The effects of a warming planet would come right back as soon as we stopped pumping particulate in.
People are already dying in “poorer” countries. We could do some clouds now to bring the temperature down to levels that aren’t killing people.
The problem is, if we wanted to bring the temperature back down by adding particulate into the atmosphere, we can never stop. Sulphur fuel in ships was a small amount, but to truly save lives I fear we would have to geoenginer the planet. And once we have opened that door there is no going back. The effects of a warming planet would come right back as soon as we stopped pumping particulate in.