Wach began his career as an environmental geoscientist with Syncrude. He then began working more in the subsurface specializing in reservoir characterization and basin analysis advising worldwide for multinational companies. He still works with the energy sector but now as Professor of Geoscience at Dalhousie University where he serves as a mentor, helping students become successful geoscientists. His research includes energy sustainability, geothermal energy, and carbon storage; his research goal is to understand the reservoir component of petroleum, CCUS and geothermal systems; understanding the internal complexity of the reservoir is not easy but part of the path to Energy Sustainability, and Carbon Neutrality. These steps are part of the Energy Transition/ Diversification the World is now undergoing. Professor Wach is an expert advisor to the UNECE Energy Sustainability Committee. He has advised the Nova Scotia government on CCS and completed the first evaluation of basins in the Maritimes for CCS. He was principal Investigator of the Gas Seepage Project (GaSP) that evaluated and conducted methane (CH4) emission inventories from legacy fossil fuel sites. Recently, Wach co-led the EAGE Workshop on Geothermal in Latin America, with follow-on courses to the EAGE worldwide on Geothermal and CCS in 2022. Wach studied at Western, University of South Carolina and the University of Oxford (D.Phil. Geology). He was the first recipient of the AAPG Foundation Professor of the Year Award, the prestigious Darcy McGee Beacon Fellowship in 2021, and the CSPG Slipper Gold Medal for outstanding contributions to exploration and development, teaching, and mentorship.