estimate that we currently use around 0.2% of the world’s ice-free land for electricity production – most of it for the mining of fossil fuels. (That’s small, considering we use 50% of the world’s ice-free land for farming.) In a world with low-carbon electricity, we could reduce this number. If the world moved to 100% nuclear, we’d need just 0.01% of the world’s land. If we used solar panels on roofs, it’d be 0.02% to 0.06%.
