Environmental Mayor Emanuel Announces City Aggregation Doubles the Amount of Wind Energy to Customers, Removing the Equivalent of 100,000 Cars From Streets by Gary Kopycinski on July 9, 2013 Gary Kopycinski Author More in Environmental: People Outside Will Be Injured: Severe Thunderstorms Strike Park Forest March 31, 2026 Park Forest Officials Urge Residents to Protect Pipes as Coldest Air of the Season Continues December 14, 2025 Park Forest Workshops Join Global Effort to Prevent Bird Collisions August 21, 2025 Through Municipal Aggregation Agreement, Chicago’s More Than Two Million Customers Will Reduce the City’s Carbon Footprint by 16%