Climate change demonstrators took to the streets of Warsaw during the weekend as host Poland comes under fire from critics at the U.N. COP19 climate summit. Chanting “Change the system, not the climate,” and “Justice and positive energy for all,” nearly 1,000 people marched through Warsaw Saturday as part of the international “March for Climate and Social Justice,” the Polish broadcaster TVN 24 reported. The event caused traffic congestion in the heart of the city as it wound its way from the Palace of Culture and Science, passed over the Poniatowski Bridge along Jerusalem Avenue and past the National Stadium, where the UN climate summit is being held. The march ended at Skaryszewski Park near the National Stadium, where demonstrators set up an “eco-park.” At the head of the procession was a large inflatable globe, emphasizing the demonstrators’ point decisions made to reduce […]