Also discussed here: Carbon price of $30 needed to avoid 2°C climate target(Ed King, RTCC, Jan. 3, 2013)
Today we review a report from the highly respected International Institute for Applied Systems Analysis (IIASA) that looks at the relationship between the price put on carbon consumption and the resulting global temperature increase that follows because of atmospheric greenhouse gas emissions. An analysis of the climate impacts and instability that result from more than 2 degrees C warming, starting with”extreme heat waves with severe societal impacts” and leading to “global mass extinctions” indicates the need to have a carbon price that would limit warming to that amount. However, continued inaction by political leaders for another decade, the factor seen to be the dominant one, to increase the carbon price from $10/ton leaves the chances of staying below 2 deg C as next to impossible. Even $30/ton has only a 60% chance of success. The role of cities, especially large ones, in reducing carbon emissions is clear as is the link between carbon pricing and road pricing to reduce emissions from transportation.
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