Cornell Tech professor tells Congress crypto can go greener
![](https://news.cornell.edu/sites/default/files/styles/story_thumbnail_home/public/2019-11/1030_bitcoin_cover.jpg?itok=6Yqqv_Zz)
Blockchain technology expert Ari Juels testified Jan. 20 before a Congressional subcommittee that digital currency – a notorious energy guzzler – can be validated in greener ways.
Blockchain technology expert Ari Juels testified Jan. 20 before a Congressional subcommittee that digital currency – a notorious energy guzzler – can be validated in greener ways.