Barely 4 per cent of arable land in sub-Saharan Africa is irrigated (compared with some 39 per cent in India), exposing farmers to great risks from low rainfall.
在撒哈拉以南非洲仅有4％的可耕地获得灌溉（而印度在39％左右），因此农民面临雨量小的巨大风险。