IEA: '$180 per tonne'

A plea from the IEA to avert ‘shocking’ climate change, reports Ed Crooks in the FT:

the leading non-OECD economies such as China and India would need to join a global emissions reduction framework, as well as all OECD members. The price of emissions in such a system would have to be high: $180 (€143, £119) per tonne of carbon dioxide to get to 450ppm in the atmosphere, compared with Wednesday’s price of about $23 in the European Union’s emissions trading scheme.