[slv77]

There have been proposals to inject sulfur into airline engines at high altitudes so this approach has been well studied. The first challenge is that even if it addresses the problem of global temperatures rising it does nothing to address other issues such as ocean acidification. At some point C02 levels become physiologically relevant to humans and it feels like living in a stuffy room all the time. The second problem is that it has to be maintained forever. Any technological glitch and the planet goes into run-away heating. Basically we’d be making a decision for humans 100 to 1000 years in the future to maintain a specific lifestyle.

It would be the equivalent of people in the 1970s deciding to not move away from ozone-layer destroying CFCs and deciding to fit all humans and animals with permanent sunglasses to prevent cataracts instead.

[bmacho]

> There have been proposals to inject sulfur into airline engines at high altitudes so this approach has been well studied. The first challenge is that even if it addresses the problem of global temperatures rising it does nothing to address other issues such as ocean acidification. At some point C02 levels become physiologically relevant to humans and it feels like living in a stuffy room all the time.

What about wars and cancer?

> The second problem is that it has to be maintained forever.

Any solution should be "maintained forever", at least until we have the ability to undo it, so basically everything while there are humans on the planet.

[asacrowflies]

You are missing the point or being purposefully dense. Many of the solutions to climate change are self sustaining . Like the biosphere itself regulating the climate. Your dumb statement about "maintaining forever" highlights the type of engineer brain /economics PhD arrogance that got us into this mess in the first place. While disregarding basic science and common sense.