Sydney Morning Herald: AUSTRALIA must halt construction of freeways if drastic cuts in emissions from vehicles are to be achieved, a submission to the Garnaut Climate Change Review has said. The Public Transport Users Association has backed its recommendation with a document showing that expansion of freeways does nothing to alleviate congestion. Instead, the report says, new freeways encourage car use and worsen gridlock. "The existence of congestion indicates high latent demand, so an increase …