Wash. Post asks: ‘What is the backup plan if the world overshoots its emissions goals?’
'Some observers argue that the IPCC’s latest report shows that such a revolution in how we fuel the global economy would not actually cost that much. But it is not so clear. The group examined about 900 emissions mitigation scenarios and figured that the median estimated cost of meeting the 2-degree goal would total about 0.06 percentage points of global gross domestic product per year over the course of the century. That huge amount of money could represent the difference between abject poverty and decent conditions for people in developing countries, depending on who sacrifices to bring emissions down'