Much of the water used for farming the south-west US, central Asia and around the Andes is drawn from rivers that originate in snow-covered mountains, says the report.

• 专家提出警告，美国西南部、中亚地区以及南美洲安地斯山脉附近大多的城市皆引山顶冰河形成的河川维持城市机能、或是灌溉作物，一但温室效应摧毁那些冰河，未来受害的将不只是沙漠地区。