The CCAC aims to catalyze rapid reductions in short-lived climate pollutants to protect human health, agriculture and the environment.

To date, more than $90 million has been pledged to the Climate and Clean Air Coalition from Canada, Denmark, the European Commission, Germany, Japan, the Netherlands, Norway, Sweden, and the United States.

The main short-lived climate pollutants are black carbon, methane and tropospheric ozone, which are the most important contributors to the human enhancement of the global greenhouse effect after CO2.

While HFCs are currently present in small quantities in the atmosphere, their contribution to climate forcing is projected to climb to as much as 19% of global CO2 emissions by 2050.

It is emitted from various sources including diesel cars and trucks, ships, residential stoves, forest fires, agricultural open burning and some industrial facilities.

Methane directly influences the climate system and also has indirect impacts on human health and ecosystems, in particular through its role as a precursor of tropospheric ozone.

Tropospheric ozone is a harmful pollutant that has detrimental impacts on human health and plants and is responsible for important reductions in crop yields.

Fast actions on short-lived climate pollutants, such as the widespread adoption of advanced cook stoves and clean fuels, have the potential to prevent over 2 million of premature deaths each year.

Rapidly reducing short-lived climate pollutants, for instance through the collection of landfill gas or the recovery of methane from coal mines, has the potential to avoid the annual loss of more than 30 million tons of crops.

Though HFCs currently represent a small fraction of total greenhouse gases, their warming impact is particularly strong, and their emissions are projected to increase nearly twentyfold in the next three decades if their growth is not reduced.

Mitigating Black Carbon and Other Pollutants From Brick Production Addressing emissions of black carbon and other pollutants from brick production to reduce the harmful climate, air pollution, economic, and social impacts from the sector Mitigating SLCPs from the Municipal Solid Waste Sector Addressing methane, black carbon, and other air pollutant emissions across the municipal solid waste sector through work with cities and national governments Promoting HFC Alternative Technology and Standards Targeting governments and the private sector in an effort to address rapidly growing HFC emissions Accelerating Methane and Black Carbon Reductions from Oil and Natural Gas Production Working with key stakeholders to encourage cooperation and support the implementation of new and existing measures to substantially reduce methane emissions from natural gas venting, leakage, and flaring.

The CCAC Oil and Gas Methane Partnership, involving the public sector and private companies, is expected to be launched in 2014.