BONN, GERMANY - NOVEMBER 15: Antonio Guterres, Secretary General of the United Nations, is seen during the COP 23 United Nations Climate Change Conference on November 15, 2017 in Bonn, Germany. The conference, which ends on November 17, has brought together 25,000 participants to discuss climate change-related issues and the progress signatory members are making towards fulfilling CO2 and other pollutants reductions. Many signatories of the Paris Agreement are failing to fulfill their commitments towards combating the global temperature rise. Recent data shows that global CO2 levels are again rising after having stagnated the last couple of years.