Following up some recent posts, Suzanne Goldenberg, an environmental correspondent for The Guardian, is quoted concerning the IPCC's latest bureaucratic tour de force regarding the economic impacts of anthropogenic climate change.
We just got to one of the really tricky sections of the report - how much will climate change hurt the bottom line? This is one area where there really isn't much hard data, because of a lack of reliability in economic models.
One number that is out in the report is that climate change will shave between .2 and 2% of global income, if warming remains at about 2C.
That is far lower than other economists say, and it opens up the question just now: why bother to cut greenhouse gas emissions at all if that's the limit of the cost?
Chris Field said those reports don't take into account the full range of impacts, or plan for what might happen with catastrophic climate events, such as the melting of the Greenland ice sheet.
"We certainly wouldn't anyone to come away from this report doing a simple comparative analysis comparing mitigation with the costs of adaptation," Field said.