The Environmental Impact of NFTs

An artwork that only exists as code might use more electricity than your entire home does in a week. In one browser tab, a creator is minting a vibrant NFT; in another, a climate report warns about rising emissions. How can both belong to the same digital revolution?

In 2021, a single NFT collection’s footprint was likened to the annual energy use of dozens of households. Critics called NFTs “ecocide as a service,” while defenders argued the numbers were exaggerated, outdated, or simply blamed the wrong thing. Somewhere between those extremes lies a messier truth: the environmental impact of NFTs isn’t fixed—it’s evolving at high speed.

As artists, collectors, and platforms rushed in, they collided with a fact most users never think about: every bid, mint, and trade rides on a global web of machines burning electricity. Yet within a year, one major network cut its energy use so sharply that many early critiques no longer apply. Others are being rebuilt from the ground up to be low-carbon by design.