Non-CO2 greenhouse gases include many substances, such as methane (CH4), nitrous oxide (N2O), fluorocarbons (CFCs, HFCs, SF6, etc), black carbon, aerosols, and tropospheric ozone (O3). These contribute significantly to climate forcing. Reducing non-CO2 greenhouse gas emissions is often more cost-effective than reducing CO2 emissions.
The importance of this conference is increasing every new event as our window for action in the climate dossier is closing rapidly. Fortunately public awareness that we need to act now is growing. With that awareness “game changers“ are proposed that need scientific evaluation to distinguish realistic and valuable concepts from what is known in The Netherlands as “ride a bike in the sky” ideas. The scope of NCGG9 will be to identify game changers and evaluate impact.