There is a reason why Bitcoin Mining Consortium was formed. Elon Musk wouldn't stop harping on Bitcoin's energy consumption and as you know, the price dropped rapidly. Given the FUD being spread by one of the more influential personalities, miners definitely want to appease him to try to push the price up again.

It doesn't help that the one thing that is hailed as the currency of the future is facing an issue that is perceived to exacerbate climate change.

It isn't a reason to use renewable energy but it is a reason to tell everyone they're using renewable energy.