Chinese President Xi Jinping on Friday will announce a nationwide cap-and-trade program to curtail carbon emissions, adopting a mechanism most widely used in Europe to limit greenhouse gases, Obama administration officials said: http://www.washingtonpost.com/business/economy/china-to-adopt-cap-and-trade-system-to-limit-carbon-emmissions/2015/09/24/eece656c-62f9-11e5-9757-e49273f05f65_story.html