Climate Policy
Climate Policy 6 (2006) 537–544
|
|
|
Research Article
|
|
|
The marginal impacts of CO2, CH4 and SF6 emissions
|
|
|
Chris W Hope
|
|
|
|
|
Abstract
A new version of the PAGE model, PAGE2002, has been used to calculate the marginal impacts of CO2, CH4 and SF6 emissions based on Scenario A2 of the IPCC. The mean marginal impact of CO2 is found to be US$19 per tonne of carbon (or about US$5 per tonne of CO2), for methane it is US$105 per tonne, and for SF6 it is US$200,000 per tonne. For each gas, the range between the 5% and 95% points is about an order of magnitude. The climate change impacts of methane are a significant proportion of its market price, and for SF6 the climate change impacts are much larger than the market price. The economics of schemes to reduce the leakage of SF6 are transformed once the climate change impacts are properly counted.
Keywords: Social cost; Impacts; Integrated assessment; Multi-gas; Model; Uncertainty
*Corresponding author.
 download full article
|
