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YCS promotes and enhances awareness, appreciation, and understanding of the Yukon’s ecosystems.


YCS supports the conservation and protection of the Yukon’s natural resources.


YCS supports humane, sustainable and responsible management of wildlife


YCS is a watchdog for development and researches smart solutions for our territory.


Christina Macdonald, Executive Director (email)
B.Sc. and Masters in Environmental Studies
Christina was YCS’s Wildlife Coordinator for three years before becoming Executive Director in July 2014. Diverse work experiences in the Yukon, including with the Northern Climate ExChange and the Yukon Government Department of Environment, have allowed Christina to become familiar with the many Yukon environmental issues, key stakeholders, First Nations land claims agreements, and emerging approaches to wildlife and land management. Christina leads the YCS team of staff, contractors and volunteers to ensure that YCS’s mandate is effectively represented on a broad range of environmental issues.


Sebastian Jones, Energy Analyst (email)
Currently completing the requirements for an M.A. in Environment and Management
Sebastian has been a member of the Dawson Renewable Resources Council and a Community Steward for the Yukon Fish and Wildlife Management Board. He has also worked for the Northern Climate ExChange and the Tr’ondëk Hwëch’in First Nation. Sebastian was a Director of the Conservation Klondike Society from 2005 to 2009, and was on the board of YCS until becoming the Peel Watershed Coordinator in 2011. He is now one of YCS’s Energy Analysts, commenting on government policy related to energy, oil and gas, and climate change. Sebastian also keeps our membership informed through writing and media, and works on mining issues, wildlife consultations, and non-Peel-related land use planning for YCS.


Anne Middler, Energy Analyst (email)
Community Economic Development Certificate, Simon Fraser University; Journalism Diploma, Langara College
Before becoming YCS’s Energy Analyst in 2008, Anne was Heritage Research Training Coordinator with Carcross/Tagish First Nation, Executive Director at the Selkirk Renewable Resources Council, Faro Mine Closure Planning Communications Advisor with Selkirk First Nation, a Community Radio Instructor at Yukon College, a Yukon News reporter, a CBC Associate Producer and a trapper's assistant. For YCS, Anne monitors the activities of the Yukon’s two electrical utilities, participates in Yukon Utilities Board and YESAB reviews of energy projects, comments on energy and climate change government policies, and advocates for energy conservation and renewable energy initiatives in the territory.


Lewis Rifkind, Mining Analyst (email)
B.Sc. in Civil Engineering
Lewis’ engineering background equips him well to produce recommendations for reducing environmental impacts of mining projects, and oppose mining projects with impacts that cannot be mitigated. Prior to becoming YCS’s Mining Analyst he was the Energy Analyst from 2000 to 2008. Lewis addresses environmental impacts associated with urban sprawl and general industrial development in the Yukon. Prior to his involvement with YCS, Lewis worked with the Raven Recycling Society dealing with public education campaigns around waste management. He has also worked with the Northern Climate ExChange at Yukon College developing community climate change adaptation plans. Lewis can be found most mornings holding court in the trendier downtown Whitehorse coffee shops.


Julia Duchesne, Communications & Outreach Manager, Webmaster (email)
M.Sc. in Environmental Change and Management, University of Oxford
Julia has worked with a number of environmental organizations in the Canadian Maritimes, Ontario, British Columbia, and England, but when her M.Sc. research brought her to Whitehorse in 2014 to study resource and energy governance in Yukon First Nations, she knew she had to return to the north. Julia maintains the YCS website and social media channels, organizes outreach events, coordinates the YCS newsletter, provides membership and volunteer support, oversees our Trail Guiding program, and contributes to Energy projects and the Peel Watershed campaign.


Judith van Gulick, Office Manager (email)
M. Sc. in Occupational Health
Judith was born and raised in The Netherlands and moved to Canada in 2006. Experiencing the huge difference between living in a densely populated country - lacking true wilderness - and living in the Yukon, her environmental values strengthened considerably. This process also led her to taking courses in environmental ethics and perspectives. Joining YCS in 2013, she brings many years of experience in office management and is responsible for the society’s finances and all office administration.


Reach our staff by telephone at 867-668-5678.

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