Alan Howard-backed Crypto Hedge Fund One River Files for Carbon-Neutral Bitcoin ETF May 25 2021 · 09:50 UTC | Updated May 25 2021 · 11:39 by Bhushan Akolkar · 3 min read Photo: Unsplash You have successfully joined our subscriber list. This will be the first-of-its-kind Bitcoin ETF that will acquire carbon credits against the Bitcoin use with each of the MCO2 tokens representing certified reductions in greenhouse emissions. Although Bitcoin (BTC) has been trading under pressure over the last few weeks, hedge funds continue to show confidence in the digital asset. On Monday, May 24, digital asset hedge fund One River filed for a carbon-neutral Bitcoin ETF with the US Securities and Exchange Commission (SEC).