Yuill has been a Sustainability Solutions Group Principal for nearly 20 years. He pioneered land-use and GHG emission planning in Canada, helped introduce the LEED for Homes rating system in Canada and co-developed the Integrated Design Process course used throughout Canada and the US. Yuill has worked on and led more than forty community energy and GHG plans and models across Canada. He has leading expertise on climate change mitigation and adaptation systems modeling that incorporates energy, GHG emissions and co-benefits. Yuill serves as a director on the boards of the Canada Research Chair on Sustainable Community Development, the Canadian Worker Cooperative Federation and Tatamagouche Community Land Trust.