U.S. ups 'social cost' of carbon emissions
Saturday, June 15, 2013 - 05:00
in Earth & Climate
The U.S. government has increased a key economic measure it uses to estimate the damage caused by carbon-emitting activities, upping the so-called social cost of carbon from $22 US per tonne of CO2 to $36 a tonne, meaning projects like the Keystone XL pipeline could be seen as more financially damaging than before.