Business Spectator: The United States this week received a lesson in climate change policy 101 from the Organisation for Economic Co-operation and Development. As the American political class struggles with the issue of climate change and the need to act — none of the Republican Senate candidates support action, and most do not believe the science — the OECD, in its regular economic survey of the world`s largest economy, has called for the US to take action on the domestic front and take a pivotal role …