Guardian: Near-record temperatures in Pakistan have claimed hundreds of lives and devastated crops in the third major heatwave in four years. But as temperatures on Friday dipped to under 38C (100F), signalling the end of nearly four weeks of blistering heat, leading meteorologists warned that the country could expect longer, more intense and more frequent events in future. Qamar-uz-Zaman Chaudhry, a vice-president of the World Meteorological Organisation (WMO) and former director of Pakistan's Met Office,...