BBC: Climate negotiations are to begin in Bonn with pressure building for the US to deliver deeper emissions cuts. Delegates are dealing with the reality that although they are wrangling with the Obama administration, US Congress will help determine the final outcome. President Obama has left Congress to make the running, and the Waxman-Markey Bill is reportedly being watered down as it goes through early stages. It would deliver a cut of 4% on 1990 levels – the Kyoto …