Danish police have arrested 68 activists who were protesting in street demonstrations in Copenhagen on Friday, Reuters reports. The goal of the protesters was to disrupt corporations and industry lobbyists that they see as "climate criminals" during the UN conference. The local police said the protesters made "trouble in town," but no injuries occurred. NGOs plan a larger demonstration on Saturday, and they expect tens of thousands of participants. For more on Copenhagen, check out the December issue of Outside.