Greg is a Professional Geoscientist registered in Canada with more than twenty years of experience in applied academic research and consulting. Greg has been involved with and has lead mine site closure planning, where the approach is; define attainable closure objectives, performance criterial to meet the objectives from which design is based, risk is evaluated, and closure performance is demonstrated. A key aspect in this approach is that risk and uncertainty (i.e. data gaps) are differentiated.Greg is also a global leader in cover system design with experience gained across a large range of climatic conditions and material types around the world. This involvement in a large diversity of locations, through early conceptual design, construction and then performance monitoring has provided Greg the expertise to ensure that there is a high degree of confidence in meeting performance expectations. In addition, Greg has gained experience in Mine Rock Storage Facility (MRSF) design in terms of ‘source control’. The concept is that rather than potentially acid generating (PAG) rock being placed into the MRSF such that oxygen supply following placement is unchecked, the MRSF is designed using strategies that focus on managing air transport. This limits sulphide oxidation and generation of stored acidity, increases longevity of any available alkalinity and reduction in closure liabilities. Greg has been the lead author of over 20 conference publications related to Cover System and MRSF design. Visit me on ResearchGate