> Bitcoin mining is a rat race to develop efficiency in technology and energy deliverance.
The cloud computing companies and EV companies and every other company that spends large amounts of its budget on buying electricity is doing the same thing. The difference is that (at least some of) cloud computing or driving is doing useful work with the energy being consumed, whereas 100% of energy going into bitcoin mining is simply getting converted to bitcoin, a speculative asset, and heat.
And the greenhouse gases are the largest problem the civilized world has ever faced, they are not some small aside. We need to figure out ways to produce less energy while still powering the important parts of our economy (transport, production of goods, research etc). Bitcoin is doing the opposite - it is creating a need for more energy production to create and exchange money, when we already have much more efficient ways of creating and exchanging money (the whole banking infrastructure of the world consumes less electrical energy than bitcoin, while doing orders of magnitude more transactions per second than bitcoin can hande in a year).