2) Carbon Taxes everywhere
3) Eliminate coal power from the developing world, even if it means switching to gas in the short term.
4) CCS - current efforts already seem surprisingly doable (single digit trillions IIRC)
Which was locally recently show to be ineffective - https://biv.com/article/2020/08/bc-carbon-tax-ineffective-ce...
https://phys.org/news/2020-01-british-carbon-tax-coal-fired-...
There is at least some evidence of success in the UK (combined with other policy + economic reality). Our climate policy is probably the only thing the government have done well recently - dwarfed by the impending iceberg of Brexit.
The article also clearly mentions that the ineffectiveness is caused by the fact that the carbon tax is too low.
Come on if you're going to link an article then don't pick one that is showing a different picture than your comment. All it showed is that governments refuse to implement effective policies, not that the concept of a carbon tax itself is flawed.
- Global agreement and partnership, since you need to decrease temperature globally to make a dent
- Convince everyone that injecting aersols into the atmosphere is the only alternative to catastrophic warming (view in contrast to convincing people of the efficacy of vaccines etc.)
Both of these are incredibly challenging undertakings, even without trying to address the issue of continually acidifying oceans.
And yet, sadly I feel like this is the only most realistic option out of them all.
Quite a few things need to line up for this to make sense, but for us, they do.