How times change. President Xi Jinping has just become the first Chinese president to attend a climate change conference. His presence in Paris could hardly have been more symbolic of the dramatic shift underway in China, under its New Normal economic policy. After all, it was only six years ago, at the Copenhagen Climate conference, that China’s then premier Wen Jiabao single-handedly wrecked any chance of agreement.

What has caused this dramatic policy turnaround in the world’s second largest economy? One factor is clearly Xi’s oft-stated belief that today’s levels of pollution – and of corruption – represent an existential threat to continued Communist Party rule.

The state-owned China Daily highlighted the pressure at the start of its report on Xi’s Paris speech. It reported: