Agence France-Presse: EU environment ministers started a key meeting Thursday as wrangling over pollution trading rights held up a major climate change accord that the EU wants passed at a summit next week. Skip related content Germany, Europe’s biggest economy, and Poland are leading opposition to the scheme under which rights to pollute would have to be bought. “We are going to defend our positions,” Chancellor Angela Merkel told the German parliament in Berlin. The trading scheme was just one of …