I like to think of climate action as a three-legged stool.

You get a series of super-typhoons into Shanghai and millions of people die. Does the population there lose faith in Chinese government? Does China start to fissure? I'd prefer to deal with a rising, dominant China any day.

Most people out there are just trying to keep their job and provide for their family. If climate change is now a once-in-a-mortgage problem, and if food prices start to spike, people will pay attention.

Unfortunately, there's a lot of people in high places who understand the science but don't like where the policy leads them: too much government control.

I like to think of climate action as a three-legged stool.

I see climate change as one of the driving forces in the 21st century. With modern technology and globalization, we are much more connected than ever before. The world's warehouses are now container ships.

Politicians have responsibility to act if the public opinion changes.