Denmark is to host a UN summit in 2009 aimed at adopting a follow-up treaty to the Kyoto Protocol on reductions of greenhouse gases, the government said Wednesday. Prime Minister Anders Fogh Rasmussen and Environment Minister Connie Hedegaard told reporters that some 170 countries were expected to attend the summit due at the end of 2009, dpa reported. Hedegaard offered Denmark as host country for the UN summit last year at a follow-up meeting in Kenya of states that had signed the Kyoto treaty. "The big target is a new global treaty on reductions of carbon dioxide (CO2) after 2012 when the Kyoto Protocol has expired," Hedegaard said. Rasmussen said that if a new treaty was to be reached, it would require "a lot of preparation."