I didn't realize there was a G-20 meeting on cryptocurrency, but according to CNBC, it was "very positive" for crypto.  Apparently, it was closed door meeting but reports were good.  From the article:

""The spirit of the discussion was very productive, and I agree that everybody left very pleased," governor of the Central Bank of Argentina, Federico Sturzenegger, said Tuesday during a press conference. "It was a very good meeting."

Cryptocurrency discussions happened during a closed-door session earlier Tuesday, a spokesperson from the G-20 told CNBC."


https://www.cnbc.com/2018/03/20/bitcoin-bounces-back-above-8800-after-a-very-positive-g-20-cryptocurrency-meeting.html