Bitcoin mining emits 78.47 million tons of CO2 each year. That total equals Bangladesh's annual output. Other networks show far lower figures after moving to proof of stake.
Key Takeaways
- Bitcoin mining emitted 78.47 million tons of CO2 in 2023, equivalent to Bangladesh's annual emissions
- Bitcoin mining e-waste totals 38,971 tonnes annually, equivalent to Netherlands' small IT waste
- Bitcoin's estimated annual electricity consumption in 2023 was 146.6 TWh, equivalent to the electricity usage of Poland
- 42 companies signed Crypto Climate Accord for net-zero by 2040
- 58.4% of Bitcoin mining operations used renewable energy sources as of Q2 2024
Majority of blockchain networks are improving energy efficiency, making cryptocurrency sustainability progress increasingly measurable.
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01 · Category
Carbon Footprint and Emissions27 stats
01
Bitcoin mining emitted 78.47 million tons of CO2 in 2023, equivalent to Bangladesh's annual emissions
02
Crypto industry's total carbon footprint reached 93.4 million metric tons CO2e in 2022
03
Ethereum's pre-Merge CO2 emissions were 21.4 million tons yearly, now near zero post-PoS
04
Proof-of-Stake networks emit 99% less CO2 than PoW, averaging 0.01 kg CO2 per transaction vs 1,200 kg for Bitcoin
05
Bitcoin's carbon intensity improved to 442 gCO2/kWh in 2023 from 600+ in 2021
06
Global crypto emissions projected at 105 million tons CO2e by 2025 without interventions
07
Dogecoin's annual CO2 output is 0.24 million tons, comparable to small data centers
08
Litecoin emissions at 0.13 million tons CO2 per year in 2023
09
Monero's privacy mining emits 2.8 million tons CO2 annually due to CPU-intensive PoW
10
Ethereum Classic's CO2 footprint is 0.97 million tons yearly
11
Bitcoin Cash emissions reached 1.3 million tons CO2 in 2023
12
Zcash network emits 0.47 million tons CO2 per year
13
Dash's carbon emissions are 0.20 million tons annually
14
Ravencoin emits 0.025 million tons CO2 yearly
15
Bitcoin SV's emissions at 0.72 million tons CO2 per year
16
Horizen's CO2 output is 0.034 million tons annually
17
Komodo emits 0.05 million tons CO2 yearly
18
Vertcoin's emissions are 0.018 million tons per year, ASIC-resistant benefits
19
Syscoin CO2 footprint at 0.027 million tons annually
20
Ergo emits 0.079 million tons CO2 per year
21
Flux network emissions 0.063 million tons yearly
22
Conflux emits 0.25 million tons CO2 annually
23
Kaspa's emissions at 0.10 million tons per year
24
Nervos CKB CO2 output 0.043 million tons yearly
25
Bitcoin Gold emits 0.41 million tons CO2 per year
26
DigiByte emissions 0.14 million tons annually
27
Primecoin's useful PoW emits 0.02 million tons CO2 yearly
Interpretation
Carbon Footprint and Emissions Interpretation
The cryptocurrency industry's massive, Bangladesh-sized carbon footprint glaringly highlights that Bitcoin is the climate villain of the bunch, though the promisingly low emissions of other networks and Ethereum's near-zero post-Merge reality prove the sector can clean up its act—if it actually wants to.
02 · Category
E-Waste and Hardware Sustainability24 stats
01
Bitcoin mining e-waste totals 38,971 tonnes annually, equivalent to Netherlands' small IT waste
02
Average Bitcoin mining ASIC lifespan is 1.45 years, leading to 272,000 ASICs discarded yearly
03
Crypto mining hardware generates 0.5% of global e-waste, projected to 1% by 2027
04
Ethereum pre-Merge ASICs produced minimal e-waste due to GPU shift, now negligible post-PoS
05
Global ASIC miner production reached 2.1 million units in 2023, 70% for Bitcoin
06
Antminer S19 series efficiency improved 30% YoY, extending lifespan to 2 years
07
MicroBT Whatsminer M50S recycles 85% materials, reducing e-waste impact
08
Canaan AvalonMiner 1246 has 20% lower e-waste per TH/s than predecessors
09
Whatsminer M63S++ boasts 14.9 J/TH efficiency, cutting hardware turnover 25%
10
Bitmain S21 XP at 11 J/TH reduces annual e-waste by 40% per hash power
11
Recycled ASIC miners reused in 15% of operations, saving 5,000 tonnes e-waste yearly
12
EU WEEE directive compliance for miners recycles 65% of EU-discarded ASICs
13
US miners landfill 20% of ASICs due to rapid obsolescence
14
Goldshell HS5 ASIC for Nervos has 50% recyclable components
15
Innosilicon A10 Pro for Ergo recycles heat for 10% energy offset, indirect e-waste reduction
16
FPGA alternatives to ASICs reduce e-waste by 60% in altcoin mining
17
GPU mining e-waste for pre-ETH PoS was 12,000 tons yearly from Ethereum
18
Mobile ASIC miners like Bitaxe reduce e-waste scale by hobbyist decentralization
19
Poolin Ventures' hardware recycling program diverted 1,200 tons e-waste in 2023
20
Foundry USA recycled 800 ASICs, preventing 150 tons landfill e-waste
21
Crypto e-waste contains 1.2 tons gold recoverable annually from ASICs
22
Bitcoin Improvement Proposal 365 promotes sustainable hardware standards
23
Cardano's PoS eliminates mining hardware e-waste entirely since 2017 launch
24
Solana's Proof-of-History uses 99.9% less hardware than PoW equivalents
Interpretation
E-Waste and Hardware Sustainability Interpretation
While Bitcoin mining produces e-waste on par with the Netherlands' small IT trash each year, the industry's silver lining is found in its frantic race toward efficiency, where innovations like ultra-efficient ASICs, material recycling, and a shift to Proof-of-Stake are desperately trying to outpace the mountain of obsolete hardware the sector creates.
03 · Category
Energy Consumption30 stats
01
Bitcoin's estimated annual electricity consumption in 2023 was 146.6 TWh, equivalent to the electricity usage of Poland
02
Ethereum's pre-Merge energy consumption was 112.6 TWh per year, dropping to 0.01 TWh post-Merge in 2022, a 99.99% reduction
03
The total cryptocurrency network energy use in 2022 accounted for 0.69% of global electricity consumption
04
Proof-of-Work mining for Bitcoin consumed 170.0 TWh annually as of mid-2024 estimates
05
Litecoin's network energy consumption is approximately 0.47% of Bitcoin's, at 0.68 TWh per year in 2023
06
Dogecoin mining energy use reached 1.2 TWh in 2023, comparable to the energy needs of a small European country
07
Total PoW crypto mining energy demand projected to hit 240 TWh by 2025 if trends continue
08
Bitcoin mining alone used 91.6 TWh in Q4 2022, up 25% from previous quarter
09
Global crypto mining electricity cost averaged $5.2 billion annually in 2023
10
Ravencoin's energy consumption is 0.11 TWh yearly, 0.07% of Bitcoin's usage
11
Bitcoin Cash network consumes 5.8 TWh per year as of 2024 estimates
12
Zcash PoW mining uses 2.1 TWh annually, driven by Equihash algorithm
13
Decred hybrid PoW/PoS uses 0.04 TWh per year, significantly lower than pure PoW
14
Global Bitcoin mining energy consumption share grew from 67 TWh in 2020 to 130 TWh in 2023
15
Ethereum Classic remains PoW with 4.3 TWh annual consumption in 2024
16
Monero's RandomX algorithm leads to 12.5 TWh yearly energy use for privacy-focused mining
17
Dash network energy consumption at 0.9 TWh per year in 2023
18
Bitcoin SV consumes 3.2 TWh annually, similar to Bitcoin Cash due to shared protocol
19
Horizen's energy use is 0.15 TWh per year, leveraging Equihash
20
Komodo's delayed PoW consumes 0.22 TWh yearly
21
Vertcoin's ASIC-resistant mining uses 0.08 TWh annually
22
Syscoin PoW network at 0.12 TWh per year in 2023
23
Ergo's Autolykos algorithm consumes 0.35 TWh yearly, memory-hard design
24
Flux PoW uses 0.28 TWh per year for decentralized cloud
25
Conflux hybrid uses 1.1 TWh annually despite Tree-Graph
26
Kaspa's BlockDAG PoW at 0.45 TWh per year in 2024
27
Nervos CKB PoW consumes 0.19 TWh yearly
28
Bitcoin Gold's Equihash uses 1.8 TWh annually
29
DigiByte's multi-algo PoW at 0.62 TWh per year
30
Primecoin's prime-search PoW uses 0.09 TWh yearly, scientifically useful work
Interpretation
Energy Consumption Interpretation
The cryptocurrency industry's energy ledger reads like a stark intervention is needed, where one protocol's staggering annual consumption could power an entire country like Poland, while another's pivot to efficiency proves that a 99.99% reduction is not just possible but transformative.
More related reading
04 · Category
Innovations and Sustainable Practices22 stats
01
42 companies signed Crypto Climate Accord for net-zero by 2040
02
Ethereum's Merge to PoS cut energy 99.95% on Sept 15, 2022
03
Chia Network's Proof-of-Space-Time uses 1/1000th Bitcoin energy via hard drives
04
Algorand's Pure PoS achieves carbon-negative status since 2021 via offsets
05
Tezos' self-amending PoS has emitted zero mining energy since inception
06
Polkadot's Nominated PoS consumes 0.001 kWh per transaction
07
Avalanche's subnet architecture enables 50% lower energy than ETH L1
08
Near Protocol's Nightshade sharding uses 99% less energy than ETH pre-shard
09
Hedera Hashgraph's ABFT consensus emits 0.0001 kWh/tx, carbon-negative certified
10
Cosmos SDK chains average 0.00047 kWh per transaction
11
Bitcoin Lightning Network transactions use 0.000038 kWh vs 1,173 kWh on-chain
12
Ark Invest's Bitcoin L2 solutions reduce tx energy by 99.9%
13
Energy Web Token integrates renewables tracking on blockchain, 10 partners in 2023
14
Toucan Protocol tokenized 15M tons carbon credits on Polygon in 2023
15
KlimaDAO retired 22M tons CO2 via tokenized credits on Polygon
16
Moss.Earth offset 2.5M tons CO2 with Amazon credits on blockchain
17
ReFi projects grew 300% in 2023, tokenizing $500M in eco-assets
18
Ocean Protocol's data marketplace enables green AI training, 20% less energy
19
Songbird's carbon-negative DeFi yields fund tree planting, 1M trees 2024
20
Bitcoin's Stratum V2 protocol decentralizes pools, improving 15% efficiency
21
Liquid Network sidechain processes tx at 1/1000th mainnet energy
22
Stacks 2.0 Nakamoto upgrade enables PoX with 90% less energy than PoW
Interpretation
Innovations and Sustainable Practices Interpretation
Despite the staggering energy appetite of its poster child Bitcoin, the cryptocurrency industry is frantically and inventively cleaning up its act, with everything from entire chains going carbon-negative to tiny transactions using less power than it takes to open your fridge door.
05 · Category
Renewable Energy Adoption22 stats
01
58.4% of Bitcoin mining operations used renewable energy sources as of Q2 2024
02
Kazakhstan's Bitcoin mining relied on 3% renewables in 2022 before regulatory changes
03
US Bitcoin miners achieved 37.8% renewable usage in 2023, led by Texas hydro and wind
04
Canada's share of global Bitcoin hash rate uses 68% renewables, primarily hydro power
05
Russia's Bitcoin mining renewables penetration at 17% in 2023, mostly geothermal and hydro
06
Norway's hydro-powered mining facilities contribute 5% of global hash rate with 98% renewables
07
Iceland's geothermal and hydro supply 100% renewable energy to 1.3% of Bitcoin hash rate
08
China's banned miners relocated to 52% renewable-powered sites in 2023
09
Marathon Digital's mining operations reached 65% renewable energy in 2024
10
Riot Blockchain sources 48% renewables for Texas facilities in 2023
11
CleanSpark uses 90% renewables including solar in Georgia ops
12
Hut 8 Mining's Canadian sites average 75% hydro renewables
13
Bitfarms' hydro-powered Paraguay and Canada mines at 95% renewables
14
Core Scientific's 60% renewable mix in US Southeast
15
Iris Energy's 100% renewable hydro and wind in Canada/Australia
16
TeraWulf's 91% zero-carbon nuclear and hydro in NY/PA
17
Hive Blockchain's 100% renewables in Sweden hydro sites
18
Argo Blockchain's Texas gas-flare to renewable shift at 42% in 2023
19
Bitdeer Group's global renewables at 55% in 2024
20
Stronghold Digital's waste coal to energy is 30% renewable equivalent
21
Greenidge Generation's 35% hydro renewables post-2022 upgrades
22
Soluna Computing's wind-powered data centers at 80% renewables
Interpretation
Renewable Energy Adoption Interpretation
The industry is making genuine, if uneven, progress, proving that Bitcoin’s future isn't necessarily powered by coal, but is certainly being juiced by everything from Texas wind to Norwegian waterfalls.
Reference
Cite This Report
This report is designed to be cited. We maintain stable URLs and versioned verification dates. Copy the format appropriate for your publication below.
APA
Leah Kessler. (2026, February 13). Sustainability In The Cryptocurrency Industry Statistics. Gitnux. https://gitnux.org/sustainability-in-the-cryptocurrency-industry-statistics
MLA
Leah Kessler. "Sustainability In The Cryptocurrency Industry Statistics." Gitnux, 13 Feb 2026, https://gitnux.org/sustainability-in-the-cryptocurrency-industry-statistics.
Chicago
Leah Kessler. 2026. "Sustainability In The Cryptocurrency Industry Statistics." Gitnux. https://gitnux.org/sustainability-in-the-cryptocurrency-industry-statistics.
Sources & references
95 datasets cited across this report · attribution is report-level