RE:FP articleIt is an interesting article, but to put things into perspective, the internet consumes over 6% of global electricity - Blockchain network approx 0.2%.
Estimated annual global Blockchain network CO2 emissions equate to 22,000 tons - equivalent to the carbon footprint of the London Stock Exchange in 2017 (although they have since reduced their carbon footprint by 50%).
Thankfully BITF is 100% powered by clean renewable competitively priced hydroelectric energy. Of cource the argument is that there is an environmental carbon opportunity cost associated with such usage.
Once the industry becomes fully vertically integrated - i.e. owning their own renewable energy projects, then I don't see that there can be any argument at all, particulary when one also takes into account the efficiencies that Blockchain has the potential to introduce to traditional carbon intensive processes the world over!