Brussels, 22/11/2010 (Agence Europe) - One year after Copenhagen and a week ahead of the international climate conference of Cancun (COP 16, 29 November -10 December), calls on the political decision-makers to make this crucial stage a success are multiplying. Former ministers and leaders of international environmental organisations are getting together to call on the heads of state and government and the planet's negotiators to allow real progress to be made in international negotiations...