Found this interesting article on Hackernoon, which states that the main source of the negative press surrounding Bitcoin's environmental impact, is completely untrustworthy and unscientific.
Here's an excerpt from the article:
Almost all news articles that repeat the lie that crypto is an environmental problem can be traced back to one source: Alex de Vries, a twenty-something year old who has zero knowledge of the electricity industry, power system modelling, China, or any related real-world experience. He blogs from home on digiconomist.net. His “reports” are about as unscientific and unethical as you can get.
While claiming to be unbiased and touting “peer reviewed” “academic articles” his site uses incendiary language to describe the bitcoin computers that maintain system security and administration as “consuming huge amounts of energy” which have now, apparently, reached “epic proportions”. This “massive energy consumption” isn’t the biggest problem, though, according to de Vries; it is that “the network is mostly fueled by coal-fired power plants in China”, resulting in “an extreme carbon footprint for each unique Bitcoin transaction.”
Do read the full article, it's very interesting.
https://hackernoon.com/the-reports-of-bitcoin-environmental-damage-are-garbage-5a93d32c2d7