China’s national assembly Saturday signalled the country’s commitment to reducing greenhouse gas emissions by adopting a law supporting its renewable energy industry.China,  which has been criticised for obstructing the adoption of a key treaty on climate change in Copenhagen, has passed a law committing the nation to reducing emissions through the adoption of more renewable energy.The new law is an amendment to one on renewable energy adopted by the National People’s Congress standing committee. It obliges electricity grid companies to buy all the power produced by renewable sources.It also empowers the State Council’s energy department, the electricity regulatory agency and its finance departments to determine the amount of renewable energy available in the country’s overall power generating capacity.Power companies will be obliged to take up all of that capacity, and those refusing to do so will be fined an amount up to double that of the economic loss of the renewable energy company, Ni Yuefeng, vice-president of the assembly’s environmental affairs commission, told reporters.