Carbon pricing is a method of charging parties who emit greenhouse gas (GHG) including CO2. The pricing is designed to reduce GHG emissions by having business corporations and households shoulder the cost of emissions the public pays according to the amount of their emissions. Carbon pricing takes the form either of a carbon tax, levied on emitters in proportion to the amount of their CO2 emissions deriving mainly from the use of fossil-based fuels, and emissions trading, a method to control CO2 emissions through the trading of surplus or deficit emissions permits between countries or business corporations.