Food production shocks 'will happen more often because of extreme weather'

Poorer countries will be hit most by falls in production for major crops but UK and and US will also be exposed to resulting instability, says taskforce

Major "shocks" to global food production will be three times more likely within 25 years because of an increase in extreme weather brought about by global warming, warns a new report.

The likelihood of such a shock, where production of the world's four major commodity crops - maize, soybean, wheat and rice - falls by 5-7%, is currently once-in-a-century. But such an event will occur every 30 years or more by 2040, according to the study by the UK-US Taskforce on Extreme Weather and Global Food System Resilience.