Chinese authorities are quickly establishing carbon trading markets across the country.
Beijing launched its carbon emissions trading today, making it China's third market for compulsory carbon trading.
City officials say an initial 490 companies have been included in the scheme.
The targeted companies account for 40 percent of the city's total emissions.
The capital city's move follows similar measures announced in other regions of the country.
Yesterday, provincial authorities in Guangdong announced the launch of carbon credits this coming month.
The provincial government of Guangdong will also auction off 29 million permits this year from mid-December.
Guangdong's move follows a similar launch in Shanghai with further similar markets due to open in Hubei, Chongqing and Tianjin next year.
For more on the carbon trading here in China, Paul James earlier spoke to Cao Can, CRI's financial commentator.