[roughly]

I donate to groups. I also purchase carbon offsets for my personal energy use, use my power company’s “all renewables” option, and have gotten much more attentive to the carbon costs of the things I do. I know it’s a drop in the sea, but it’s my drop. I also work at a company whose outputs I think will help the problem.

The approach I’ve found works best for me for lifestyle changes is to treat them as a slow ratchet - make a decision like “cut down on meat” (or whatever), and just start taking steps down that road. Take the steps that you feel like you can, get used to them, and then take another step. It’s hard to change everything overnight, but you can make a remarkable amount of change if you’re attentive over time.

That said, it’s still the existential elephant in the room. I don’t look at it every day, and when I do, it’s terrifying. But it’s just too big for me alone to face - all I can do is what I can do, and hope it adds up with what everyone else is doing to make a difference.