• Fast-rising fungal attacks on the world’s most important crops threaten the planet’s future food supply.* The impact of fungal disease is expected to worsen, the researchers say, as the climate crisis results in temperatures rising and fungal infections moving steadily polewards. Since the 1990s, fungal pathogens have been moving to higher latitudes at a rate of about 7km a year. Wheat stem rust infections, normally found in the tropics, have already been reported in England and Ireland.