Nielsen is the NSERC Industrial Research Chair in Northern Mine Remediation at YukonU. He works in partnership with the Yukon mining industry and focuses his research on mine water treatment, mine waste management and revegetation. He works especially on passive treatment of mine impacted waters in cold climate: enhancement of metal removal from cold waters by biological-chemical processes.

Guillaume is an outdoor enthusiast and enjoys field work.
In the last few years, he also has become increasingly interested in expanding his tool set to include collaboration with industry, academic and First Nations in water management projects.

The Industrial Research Chair’s partners include: Newmont Goldcorp, Victoria Gold Corporation, BMC Minerals, Casino Mining Corporation, Selwyn Chihong Mining Limited, Minto Exploration and Alexco Resources Corporation.