[craftyguy]

Yup. There's just no way us humans are going to 'act now'. Any response at a global (and, in the US, national and state) level will be 100% reactive, and 0% proactive. Since there are still people arguing over the cause, I'm starting to think it might be more productive to move the conversation from trying to be proactive (which requires everyone to agree on the cause) to reactive (which does not).

In other words, start preparing for the outcome of this. We, as a species, cannot seem to be able to stop what we are doing.

[AstralStorm]

The main outcomes would be localized famines, general food shortage, freshwater shortage, increased heat, mass migrations, some flooding.

What do you think we can do about those antecedents we're not doing right now? (not argumentative, maybe I'm missing something)

We will have to deal with the source of the problem sooner or later; given enough trapped heat most of the planet will turn into deserts.