Reuters: The European Commission is considering phasing in fees it charges to carmakers who fail to meet ambitious targets to reduce emissions of carbon dioxide (CO2) by 2012, a European Union source said on Monday. Amid fierce lobbying, the EU executive is due to announce on Wednesday how it will share out cuts in the main gas blamed for global warming between makers of light and heavy cars. Germany has led resistance to sharp constraints on its makers of luxury heavy cars, rejecting …