Asia is entering a dangerous summer for food production as scientists warn of a “super El Nino” suppressing rainfall while the war on Iran drives up energy and fertiliser costs for farmers. India’s Meteorological Department has forecast a below-average monsoon, after two successive years of above-normal rains, while in Australia – a major wheat producer and exporter – a shortage of farm inputs and persistent dryness has reportedly pushed planting acreage to a seven-year low.