Carbon trading needs a multi-level approach.

The article offers information on government policy regarding carbon trading and carbon emission. It says that the expansion of trading in carbon emission was not affected by the failure of the international negotiations on binding the targets for national carbon-emission. It states that carbon emission trading is considered to be one of the contributors in global market mentioning a 142 billion U.S. dollars spending in 2010. It also explores the continuous growth of carbon emission trading.