重要的是我们必须认识到地球气候系统存在巨型组成部分 — — 比方说南极洲西部三千万亿吨的冰盖 — — 只消关键部位微不足道的升温就可能打破平衡状态。
What is important is that we recognize the existence of gigantic parts of the earth’s climate system – such as West Antarctica’s three-quadrillion-ton ice sheet – that can be tipped when a fractional temperature rise occurs in key locations.