The future offers tremendous environmental risk from urbanization, as well as incredible potential to bring nature's power to cities, and I'm sure of one thing: Whatever happens, China will be at the center.
Certainly air, like water, must be free and available to everyone to breathe and drink freely, breath by breath, swallow by swallow, day by day, in the name of individual and world health and security. But that is not the case.
The destruction in China is so staggering, it's hard to comprehend. Sixteen of the world's 20 most polluted cities are in China, and many regions can now lay claim to the most polluted air in the world.