Sustainability Resources Ltd. along with host sponsors Telus Spark and the City of Calgary, have released the program for the third Pathways 2 Sustainability (P2S) Conference. Slated for May 29-31, 2013, at Telus Spark in Calgary, AB, P2S is an interactive conference experience coordinated by Sustainability Resources Ltd., a provincial organization dedicated to advancing sustainability in Alberta. A keynote address by HPAC contributor Robert Bean, who is president of Indoor Climate Consultants Inc. and director of HealthyHeating.com, is titled Principles of Energy Appropriateness. Other keynote speakers include Hunter Lovins of Natural Capitalism, Toby Heaps, co-founder and president of Corporate Knights Inc., and Andy Ellis, senior vice president, supply chain and logistics with Walmart Canada.