Carbon trading is said to be one way to reduce greenhouse gas emissions . Existing carbon trading systems have had limited impact on emissions to date . While the consensus of the scientific community ( via the IPCC ) is that action must be taken to avert the worst impacts of climate change , economic arguments about the cost of climate change abatement -- advanced by countries like the U.S. and at one time Australia -- The European experience serves as a good lesson for new trading systems .
Carbon trading is said to be one way to reduce greenhouse gas emissions . Existing carbon trading systems have had limited impact on emissions to date . The European experience serves as a good lesson for new trading systems .