Climate Skeptics are Like Nazi Appeasers

Here is how the Sydney Morning Herald characterized a speech last night on science and policy by Nathan Rees, Premier of New South Wales (Australia):

NSW Premier Nathan Rees compared climate change sceptics to Nazi appeasers as he addressed a roomful of scientists at the Eureka Awards last night.

In a speech about good policy based on good science, Mr Rees said it was important not to ignore the messages scientists were giving about the environment.

If climate skeptics are the Nazi appeasers, then who are the Nazis?