It is true that proof of work mining which secures the Bitcoin and Ethereum blockchains uses electricity to do that work. And certainly there are carbon emissions associated with that electricity consumption.
Razer, a global gaming and lifestyle brand, has announced a partnership with a Hong Kong-based startup that focused on marine plastics waste, Clearbot. Under the tie-up, Razer’s engineers and designers will help build a scalable and mass marketable prototype. Read more: https://bit.ly/35kHLNG