One of the toughest challenges facing world development is how to promote economic growth and reduce emission of greenhouse gases (GHGs) in the atmosphere, and confronting climate change.

This problem is particularly acute for fast growing economies such as China, which are already burdened with vast GHG emissions.

While action is needed on multiple fronts, one way to drive growth and mitigate emissions simultaneously is to improve energy efficiency - an approach promising a win-win outcome.