Brussels, 15/06/2011 (Agence Europe) - Ever increasingly top European companies are calling on the EU to increase its level of ambition on reducing greenhouse gas emissions by 2020. In response to an invitation from a group of NGOs (The Climate Group, The University of Cambridge Programme for Sustainability Leadership and WWF), 72 leading companies signed a joint statement on Wednesday 15 June urging the EU to adopt a 30% reduction target to stimulate the economy and employment in Europe....