Jeff Huang of the Chicago Climate Exchange said that the Energy and Commerce Committee of the US House of Representatives passed a bill on climate change in the United States in May, which was a very important milestone in the reduction and trading of carbon dioxide in the United States. According to a Wharton professor's prediction, if the United States passes the climate change carbon trading bill, the carbon market will rise from 1 1000 billion dollars in 2008 to 500 billion dollars in 20 12 years. By 2020, the scale of carbon market and carbon trading market will reach 3 trillion US dollars. If it is such a market, I am afraid it will be much bigger than the crude oil and oil we are talking about now, and the largest commodity at present is also much bigger.