Guardian reporters reflect on Nicholas Stern’s comments;
Do politicians really know what will happen if we hit 3, 4, 5 degree rises in temperature? I don’t think they do. The politicians can tell you we can still hit a target of 2 degrees. The scientists won’t. People here are saying that 2 degrees is gone, we’re going to be lucky to limit rise to 3 degrees, but actually we’re looking more like 4 degrees.
4 degrees would be extinction for huge numbers of species, massive drought and famine for millions of people.
Stern himself is quoted:
Do the politicians understand just how difficult it could be? Just how devastating four, five, six degrees centigrade would be? I think not yet. Looking back, the Stern review underestimated the risks and underestimated the damage from inaction.