What's a good argument against the old "#Bitcoin is boiling the oceans! It's causing climate change!" retort dishonest idiots keep making?
Discussion
People arguing from that perspective are not interested in any other view but their own.
Never wrestle with a pig. You just get dirty and the pig enjoys it.
Greenhouse gas emissions from BTC are estimated to be a lot lower than air conditioning. Combine that with deforestation, livestock, and tourism, and it really makes you wonder why all of a sudden this is the straw breaking the camels back.
Source: https://ccaf.io/cbnsi/cbeci/ghg/comparisons
The source is probably off but it's the most legit estimation I've seen.

Some recent data here