I think, in general, personal consumption decisions should be thought in the context of moral seriousness (see Will MacAskill’s comments in recent podcast).
Should we take seriously efforts to avoid unnecessary emissions? Yes! Is EA doing this? I’m not sure. My impression is that EAs are fairly likely to avoid unnecessary flights, take public transport etc—that’s the attitude I take myself, anyway. This is less unusual than veganism—the thoughtful Londoners I’m surrounded by do the same. So I think it would be easy to underestimate the extent to which EAs do this, just because it’s less noteworthy.
EAs also fly to conferences which have air conditioning. Is this worth it? Anecdotally, a lot of good seems to emerge from in-person conferences. And air-conditioning is important for thinking and learning. So I think we’re probably in the right place here, but I’d be interested in a more detailed look at this question.
Should EAs reduce their emphasis on personal meat/dairy/egg consumption? Should they increase their emphasis on their personal carbon footprint?
I think the answer is probably a bit of both.
I strongly doubt there is truly a trade-off here—I don’t think veganism is an especially emphasised aspect of EA, and if there is a strong case for specific changes in personal emissions consumption, I think this could be advocated on its own merits and in addition to veganism.
https://breakingdefense.com/2022/08/ignoring-global-catastrophic-risk-threatens-american-national-security/
This seems like a major success in influencing US policy.