There is no silver bullet to replace fossil fuels like oil or coal. Take a look at some encouraging examples, such as algae fuels, heat from crowded cities, and greener air travel.
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You should at least point out that WWF/Allianz does not believe that nuclear energy represents a sustainable solution to climate change, in spite of the fact that the world leader in CO2 reduction, France, has achieved its status by massive adoption of nuclear for electricity production, and by investing heavily in transport and industrial systems that run on their CO2-free electricity.
You might also point out that France exports, at a profit of several billion euros/year, about as much CO2-free electricity as Germany, Spain, Italy, and the UK make with wind turbines (at the cost of several billion euros/year in subsidies). Profit is sustainable, loss is not.
France may have to deal with a shortage of uranium in a few hundred years, whereas Germany will have to deal with the loss of their coal reserves in 34 years.