Much of the post-game analysis of yesterday’s big UN climate summit dwells on the lack of specifics offered by the U.S. and China—lack of specific commitments to curb emissions, pass legislation and the like.

But there was one interesting difference in the speeches of President Obama and Hu Jintao: The specific role each country sees for nuclear power.

President Obama dedicated the first part of his talk to a recital of what his administration has done to make the U.S. a cleaner-energy economy. He cited renewable energy, wind power, solar panels, hybrid cars, energy-efficient buildings, offshore wind power, new fuel-economy standards for cars, and work on clean coal. He did not mention nuclear power once.

In contrast, the Chinese president embraced nuclear power as part of the country’s clean-energy push. Mr. Hu said the country will “vigorously develop” renewable energy and nuclear energy as part of the plan to generate 15% of China’s electricity from non-carbon-emitting sources by 2020.

China has already said it hopes to build as many as 132 gigawatts (Thanks, Rod) of new nuclear power plants as part of its bid to reduce electricity-sector emissions; nuclear is currently an almost-neglible part of China’s energy mix.