Reuters: Global financial mayhem is dimming prospects for a strong new UN pact to fight climate change, but it might aid cheap green schemes such as insulating buildings to save energy, analysts said. The turmoil, straining government coffers with bank bailouts, may sap interest in more costly projects such as burying heat-trapping carbon dioxide from coal-fired power plants, refining biodiesel or some renewable energies. “There will be a shift in investments” toward energy efficiency, …