Climate goal calls for push on solar, wind

China's new pledge to curb greenhouse gas emissions means the world's biggest carbon polluter must make a more aggressive push to install solar and wind power, according to an industry association.

Faster adoption will be key to meeting commitments because other zero-emission sources such as nuclear and hydropower are constrained by safety questions and availability, said Tang Wenqian, executive deputy secretary-general of the Chinese Renewable Energy Industries Association.

Premier Li Keqiang on Tuesday promised China will cut carbon emissions per unit of GDP by 60 percent to 65 percent by 2030, compared with 2005 levels. China has already said it wants to have 200 gigawatts of wind power and 100 gW of solar by 2020.