Why using 20-year Global Warming Potentials (GWPs) for emission targets are a very bad idea for climate policy

Date Published 2017, November 16

Authors Climate Analytics

There have been proposals for the UNFCCC to adopt a dual-term greenhouse gas accounting standard: 20-year GWPs alongside the presently accepted 100-year GWPs. It is argued that the advantage of such a change would be to more rapidly reduce short term warming and buy time for CO2 reductions. This briefing shows why these changes would be counterproductive and the benefits overstated.