Reuters: China's national carbon market is likely to regulate 3-4 billion tonnes of carbon dioxide by 2020 and be worth up to 400 billion yuan ($72 billion), a government official said on Thursday, which would make it twice as big as the EU market, currently the world's biggest. The National Development and Reform Commission (NDRC), China's top economic planner, and the Asian Development Bank held a conference in Tianjin on Thursday, outlining initial plans for a nationwide market to slow down the rapid...