Corporate greed for many years has been called a primary cause of pollution. But finance officials and professionals attending the International Green Finance Forum in Shanghai on Tuesday said the power of money can also be used to clean up the environment.

Green finance for the first time ever was incorporated into the agenda at the just-concluded G20 summit in Hangzhou. On Tuesday, officials from the People's Bank of China, the Bank of England and a host of other public and private agencies gathered to discuss ways to develop green finance.

The officials focused on how to promote investments in green sectors while restricting investments in polluting industries. They also looked at unifying standards for green bonds and finding ways to develop a market that makes it easier for green companies to issue financial products.

China's central bank vice governor -- Yi Gang -- delivered the opening remarks at the forum and talked about China's achievements in the area of green finance.