Polkadot has least carbon footprint, crypto researcher says

A study of crypto blockchains that use proof-of-stake – a more energy efficient system than bitcoin – has found several with smaller carbon footprints using different metrics. — Bloomberg

Energy usage by various crypto blockchains has been a topic of controversy for years – and now a research firm has tried to quantify the exact differences in consumption by some of the top networks.

Polkadot has the lowest total electricity consumption and total carbon emissions per year of the six so-called proof-of-stake blockchains studied, according to a report from Ulrich Gallersdörfer, Lena Klaaßen and Christian Stoll of the Crypto Carbon Ratings Institute.