Copenhagen Clashes

Dec. 16: Police gather outside the Bella Center in Copenhagen, where they fired tear gas and swung batons to disperse crowds of protesters trying to disrupt the 193-nation climate conference. Demonstrators for days have taken to Copenhagen's streets to demand "climate justice," firm action to combat global warming. Police said 230 protesters were detained. (AP)

Dec. 16: Police use pepper spray to push back protesters during a demonstration outside Bella Center, the venue of the U.N. climate change conference, in Copenhagen. (AP)

Dec. 16: A Danish riot policeman beats a demonstrator who climbed on top of a police vehicle during a demonstration outside the Bella Center, the venue of the U.N. Climate Conference, in Copenhagen. (AP)

Dec. 16: Danish riot police push back protestors during a demonstration outside the Bella Center, the venue of the U.N. Climate Conference, in Copenhagen. (AP)

Dec. 16: A protester with a message for PresidentObama takes part in a demonstration outside the Bella Center, the venue of the U.N. Climate Conference, in Copenhagen. (AP)

Dec. 16: Danish riot police push back protesters during a demonstration outside the Bella Center, top right, the venue of the U.N. Climate Conference, in Copenhagen. (AP)

Dec. 16: Danish riot police use their batons to push back protesters during a demonstration outside Bella Center, the venue of the U.N. climate change conference, in Copenhagen. (AP)