Lawyer, long-time government employee. Government Plenipotentiary for Climate Policy, from 2013 to 2015, served as Minister of Environment from 2011 to 2013, Deputy Minister of Economy 2005 to 2011 (represented Poland at more than 150 meetings of the EU Council of Ministers for Environment, Trade, Competitiveness and Energy).
President of the 19th Conference of the Parties to the Climate Convention – COP19 in Warsaw, organized by the United Nations. Co-chaired the European Union delegation at the 17th Conference of the Climate Convention in Durban.