## A single Bitcoin transaction carried an average water footprint of about 16,000 litres in 2021 once the electricity and cooling behind it were counted — roughly 6.2 million times the water behind one credit-card swipe, and the figure rises and falls with the price of Bitcoin itself As Bitcoin's price swings, so does its estimated freshwater footprint—the 2021 per-transaction average was put at roughly 16,000 litres, about the volume of a backyard swimming pool. By The Daily Orbit · Edited by Nato Lagidze Published September 17, 2026 · How we edit In 2021, the average transaction recorded…