The scientific community must act to prevent the exponential growth of computational science's carbon footprint as the ubiquity of artificial intelligence, algorithms, and data science increases. That's a warning from researchers from the University of Cambridge, who say that those involved in computational science – from individuals to institutions – should take responsibility for reducing greenhouse gas emissions. In recent years, there has been a growing interest in the climate impacts of scientific research. Much of this has focused on conferences – particularly emissions from participants’ flights – and the carbon footprint of laboratories.