The Securities Exchange Commission (SEC) has again delayed a final decision on a carbon offset bitcoin ETF that was filed to list on the New York Stock Exchange (NYSE) Arca. The deadline for deciding on a new one has been extended to Nov. 21, according to a Sept. 4 filing. The ETF is designed to provide bitcoin investment exposure in an environmentally friendly manner by offsetting carbon emissions, tracking a portfolio consisting of 80% bitcoin and 20% carbon credit futures. Tidal Investments filed its fund registration application in December 2023, while NYSE Arca filed its preliminary application in March. Concerns have been raised about the environmental impact of bitcoin mining, with the international monetary fund (IMF) reporting that cryptocurrency mining accounts for 1% of global greenhouse gas emissions. The delay in this decision also includes a delay in the approval of the Nasdaq One Stop Crypto Portfolio ETF.