Worldwide, we drink around 2bn cups of coffee every day. But as coffee plants come under pressure from the climate crisis, sustaining this habit will be increasingly challenging. Recently, a new study provided a glimmer of hope: a climate-resistant coffee plant just as tasty as arabica. Patrick Greenfield asks Dr Aaron Davis about his work tracking it down, and speaks to Dr Matthew Reynolds about developing climate-resistant crops. Help support our independent journalism at <a href="https://www.theguardian.com/sciencepod">theguardian.com/sciencepod</a>