Impact of the financial crisis on carbon economics: Version 2.1 of the global greenhouse gas abatement cost curve

We have updated our global greenhouse gas (GHG) abatement curve to reflect the impact of the financial crisis on emissions and abatement economics. The business-as-usual emission projection for 2030 has dropped by only 6 percent relative to the pre-crisis estimate. The total abatement potential remains essentially the same while emission reductions might become cheaper in relative terms as a result of higher fossil fuel price expectations.