Mongolian herder Zandan Lkhamsuren lost all but two of his 280-strong flock of sheep in last year's deep freeze -- known as a 'dzud' -- an extreme weather event that is becoming more frequent and more intense in a country badly affected by climate change. Across Mongolia, more than seven million animals were killed, over a tenth of the country's total. The loss wiped out most of Lkhamsuren's income, meaning his family couldn't afford the tuition fees for his two daughters, who were both meant