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China is investing large amounts in sustainable technologies such as solar energy, as well as low-carbon technologies such as carbon capture and storage. However, it continues to build large numbers of coal-fired power plants.
Initiatives by topic
Community and voluntary action
Citizens data initiative: China has the greatest number of bike share systems for a single country (237 in total) (September 2015) 
chinese language websites for city farmers, from City Farmer News
Sustainable transport activism
News and comment
See separate article: China news
Regular events: China Green Drinks, listings for 7 cities
Chaihuo Maker Space, Shenzhen
New workshop - XinCheJian, Hackerspace in Shanghai
more video: China Green, multimedia enterprise, documenting China’s environmental issues
via List of Ashden Award winners, winners in China from 2006 - 2008
wikipedia:List of Ashden Award winners, winner from USA/China in 2009