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‘Just an unbelievable amount of pollution’: how big a threat is AI to the climate?
(www.theguardian.com)
Discussion of climate, how it is changing, activism around that, the politics, and the energy systems change we need in order to stabilize things.
As a starting point, the burning of fossil fuels, and to a lesser extent deforestation and release of methane are responsible for the warming in recent decades:

How much each change to the atmosphere has warmed the world:

Recommended actions to cut greenhouse gas emissions in the near future:

Anti-science, inactivism, and unsupported conspiracy theories are not ok here.
I suppose, this is quite debatable, because the current money system does waste a whole lot of energy, It's just not calculated how much. Honestly, if you have have links showing how much energy the banking system consumes globally, please share.
On the other hand, bitcoin's blockchain is a decentralised and transparent system. This is not something that the banking system can claim.
My biggest problem with traditional banking is how much paper is still used.