The Climate summit took place yesterday at the occasion of the General Assembly of the United Nations (UN) yesterday. Ban Ki-Moon, General Secretary of the UN, called for this summit with the aim of putting the issue of climate change back on the top of agendas of over 120 world leaders, even though a regular UN climate conference is foreseen for this December. The European Union is represented in New York by the outgoing President of the European Commission, José Manuel Barroso, Commissioner for climate change Connie Hedegaard and Commissioner for development aid Andris Piebalgs. Can Europe use its exaple to stimulate other countries towards a more serious climate action? Which policies does it have at its disposal? Well, Ban Ki-Moon preferred to bet his money on Leonardo Di Caprio.