[civilized]

I agree it would be good if people flew less and ate less meat, but have you checked whether those actions would be sufficient to meaningfully slow climate change, making it unnecessary to consider geoengineering?

I don't like the idea of pumping stuff in the atmosphere either. I would rather make a space sunshade, although I can't say I understand the economics well enough to compare it with sulfur aerosol. Either way, we're not on track to control the climate right now, even if consumers do some nice things. We need more time.

[sgu999]

It's not just on the consumer, though. Policy makers need to get a grip. Yes, reducing meat, not flying, less heating, buying less crappy stuff, consume local food, etc. but we also need to allow people to move around in trains, put taxes on food imports, forbidding 2t SUVs, control birthrate, etc. We live in an extremely suboptimal society given our current constraints. All that can be enough for our population to live sustainably but that requires planning, not more time to procrastinate...

[civilized]

Most people, both in developed countries and across the world, rank climate at the bottom of their list of concerns. Some enlightened elites care about it, but they can only do so much.

That situation will remain exactly the same if we buy more time with geoengineering. But at least with geoengineering, hundreds of millions of people might not be driven from their homes by literally unlivable heat conditions in this century.

If those people want to live in your backyard, does geoengineering sound a little more appealing now?

[sgu999]

> Most people, both in developed countries and across the world, rank climate at the bottom of their list of concerns.

My impression from the recent polls I've read about was that this is generally not true anymore, specially over here in western Europe after the summer we had.

> That situation will remain exactly the same if we buy more time with geoengineering. But at least with geoengineering, hundreds of millions of people might not be driven from their homes by literally unlivable heat conditions in this century.

This is just witchcraft. There's no way back from it and it's be a petty excuse to keep doing business as usual and generate profit. And keeping a stable climate isn't the only ecological challenge we're facing.

> If those people want to live in your backyard, does geoengineering sound a little more appealing now?

Absolutely not. And "those people" are already crossing the mediterranean ocean by thousands to live in my backyard.

[civilized]

I don't know who is making petty excuses or doing witchcraft. I make no profit from fossil fuels and I would rather see decarbonization at a much faster rate than we are doing today. The problem is, we are going to heat the Earth quite a bit at this point no matter what. Something has to be done about that as well as about the emissions that are making it worse.

This is not only about morality and profits. It is also about our actual Earth and what happens to it. It's still going to heat by several degrees even if humanity has the enlightenment that many people here seem to dream will happen soon.

[sgu999]

> I make no profit from fossil fuels

We almost all profit from fossil fuel. Our entire lives are built around it and defined by it...

I don't really believe there will be an enlightenment, just a forced adaptation. And this will happen less quickly if we believe there is an easier solution than changing most of our ways.

We have countless examples of these. Did massively improved engines make car consume massively less petrol? No, they mostly got bigger. Improving farming? Just eat more meat and waste more food. Capable of building insanely dense but livable neighborhoods? We've never expanded our cities horizontally as much as now for cars and single family houses.

Getting a better control on the environment will just enable us to trash it more... just like usual.

[civilized]

How far do you go with that line of thinking? Was the Agricultural Revolution a mistake? Should we have remained hunter gatherers?

Aside from that, while I agree that people have historically often used technology to consume more, some of your examples seem at odds with facts, especially recent developments:

1. Fuel economy has been improving for the last few decades https://www.greencarcongress.com/2019/09/20190930-sivak.html

2. Birth control has greatly reduced fertility rates. This suggests that your fellow humans may not simply be mindless maximizers of resource utilization, eager to exploit every technological advance to increase their consumption. They want sustainable lifestyle like you, and will choose it if it isn't too difficult to implement.

People want to live sustainably, but will struggle to adapt on a rapid timescale dictated by the planetary greenhouse effects. Giving more time will provide a better result.