Green Roofs for Healthy Cities: Grey to Green Calendar When: August 25, 2014 – August 27, 2014 all-day 2014-08-25T04:00:00+00:00 2014-08-27T04:00:00+00:00 Where: Eaton Chelsea 33 Gerrard Street West Toronto, ON M5G 1Z4 Canada Contact: Green Roofs for Healthy Cities Event website