The issue with using aerosols to cool the planet is that it doesn't address the root cause of the issue - the CO2 is still there. If you ever stop pumping out a

The issue with using aerosols to cool the planet is that it doesn't address the root cause of the issue - the CO2 is still there. If you ever stop pumping out aerosols, the temperature will spike right back up very quickly. This makes the system very fragile. And remember, this stuff you now have to pump into the atmosphere is harmful in its own ways - it's toxic not only to vulnerable species but also to crops and to humans. Whether those consequences are better or worse than the full effects of climate change is debatable, but one way or another you ultimately need to find a way to get your environmental house in order.