蜜芽传媒

Researchers in the US and UK say climate change is making it more likely that the world could suffer what are known as "extreme food shocks" - sudden crop failures that lead to rapid price rises. By the end of this century such events could happen in seven out of every ten years. The 蜜芽传媒 environment correspondent Matt McGrath explains.

Photo: an ear of corn is blackened in the sun during a heat wave Credit: AP