January 2012. City of Toronto. The ClimateSpark Social Venture Challenge identified and supported a number of social ventures in the Toronto area that offered significant carbon emissions reduction potential through scaled-up product or service delivery. The final report recaps the contest development and the core partnerships, as well as providing more detail on each of the three stages of the challenge: Ignite, Accelerate, and Launch. Notable projects identified and supported through the ClimateSpark competition includes SolarShare and ZooShare.