Bitcoin (BTC) Mining Back in the News with New CO2 Emission Numbers

At the turn of the year, Bitcoin (BTC) mining has once again faced the scorn of lawmakers. The increased level of interest followed Bitcoins surge to a November ATH $68,979. Rising prices draw in greater mining activity, thus having “a greater impact on the environment”.

Bitcoin Mining and Government Action

Last summer, the Chinese government banned Bitcoin mining as the government looks to be carbon neutral by 2060. Other governments have since temporarily or permanently banned crypto mining. These include Kosovo and Georgia, with Russias central bank also proposing to ban crypto mining.

Last month, a U.S Congress sub-committee hearing explored crypto mining, focusing on Bitcoin and Proof-of-Work mining. From the hearing, it was evident that lawmakers leaned against Proof-of-Work mining, which could prove to be another challenge for Bitcoin miners. According to Cambridge Centre for Alternative Finance, the U.S was the largest Bitcoin mining nation, accounting for 35.4% of the global hashrate in August 2021.

Bitcoin Mining Statistics Support Government Concerns

For governments with carbon neutral aspirations, the statistics have continued to place Bitcoin mining in the spotlight. Some key mining stats worth considering include:

According to Columbia Climate School, Bitcoin (BTC) is thought to consume 707KwH per transaction. In addition, there are also mining computers that heat up and need cooling.

The University of Cambridge estimated that Bitcoin (BTC) mining consumes 121.36 terawatt-hours (TWh) per year. Based on this estimate, if Bitcoin were a country, it would be a top 30 energy consumer.

Estimates show that Bitcoin (BTC) mining yields 22m to 22.9m metric tons of CO2 emissions each year.

In terms of global warming, Bitcoin (BTC) mining could push global warming above 2 degrees centigrade in less than 3-decades.

The following numbers were presented in last months crypto mining sub-committee briefing memorandum:

The estimated annual energy usage of the Bitcoin network alone grew from 77.78 Terawatt-hours (TWh) on 2nd January 2021 to more than 198 TWh on 26th November 2021.

Over the same period, the Ethereum (ETH) networks annual energy usage grew from 14.81 TWh to more than 92 TWh.

A single ETH transaction added more than 90 pounds of CO2 to the atmosphere, while a single BTC transaction added more than 1,000 pounds.

The global 2021 CO2 emissions of ETH and BTC mining is equivalent to tailpipe emissions from more than 15.5m gasoline powered cars on the road every year.