Can the climate survive the insatiable energy demands of the AI arms race?

A recent UK government-backed report on AI safety said that the carbon intensity of the energy source used by tech firms is "a key variable" in working out the environmental cost of the technology. It adds, however, that a "significant portion" of AI model training still relies on fossil fuel-powered energy. Indeed, tech firms are hoovering up renewable energy contracts in an attempt to meet their environmental goals. Amazon, for instance, is the world's largest corporate purchaser of renewable energy. Some experts argue, though, that this pushes other energy users into fossil fuels because there is not enough clean energy to go round. "Energy consumption is not just growing, but Google is also struggling to meet this increased demand from sustainable energy sources," says Alex de Vries, the founder of Digiconomist, a website monitoring the environmental impact of new technologies.