In addition to his work on the Committee on the Environment, Public Health and Food Safety, Florenz served as member of the Parliament's Temporary Committee on Climate Change between 2007 and 2009. He was also part of the European Parliament’s delegations to the 2007 United Nations Climate Change Conference in Bali; the 2008 United Nations Climate Change Conference in Poznań; the 2009 United Nations Climate Change Conference in Copenhagen; the 2013 United Nations Climate Change Conference in Warsaw; the 2014 United Nations Climate Change Conference in Lima; and the 2015 United Nations Climate Change Conference in Paris.