U.S. Rep. Sean Casten, D-IL, climate change talk at Barrington Village Hall.
David Sjolander (right), of Palatine, listens to U.S. Rep. Sean Casten, D-IL, as he spoke to constituents on Saturday at Barrington Village Hall in Barrington about his recent trip to the 25th UN Climate Change Conference or COP 25, in Madrid, Spain. Ryan Rayburn for Shaw Media