Environmental disaster is the gravest threat to China's continued development. That's according to me, but it is not some wacko view.

Chinese emissions are a problem not just for its own people but also for the world. It has now overtaken the U.S. as the biggest carbon emitter; most of the coal that is burned anywhere on Earth is burned in China.

Environmental disaster is the gravest threat to China's continued development. That's according to me, but it is not some wacko view.

It seems to be the case that for the people who actually are all in with Donald Trump - which is who knows: 35, 38, 40 per cent of the electorate - apparently nothing can dissuade them.

No real-world human being brings to the U.S. presidency the range of attributes necessary for full success in the job.

For the record, I am sticking with my claim that the simultaneous degradation of air quality, water quality, water supply, food safety, soil quality, and other environment-related variables is the main challenge to China's continued development.

The Hawk and the Dove is a wonderful idea for a book, wonderfully carried out. Nicholas Thompson has used illuminating new material to present each of his protagonists in a convincing, respectful, but unsparing way. Even more valuable, he has used the interactions and tensions between Paul Nitze and George Kennan to bring much of American 20th century foreign policy to life, with human richness ever present but with the big issues clear in all their complexity.