He taught sculpture at NSCAD University in Halifax for 26 years and is based in Lunenburg County, Nova Scotia, and Pietrasanta, Italy.
[3] By the late 1980s, Greer adapted the stone carving process by applying conceptual and post-minimalist ideas to his art which inspired many young artists in the "Halifax Sculpture" movement.
In 2014, Greer co-founded “Intercontinental Sculpture Inc.”, in order to be able to handle more successfully the business part of creating art for the public domain.
[6] The Art Gallery of Nova Scotia had a major travelling retrospective of Greer's work, retroActive, curated by David Diviney, which opened in 2015.
He received the Victor Martyn Lynch-Staunton Award (1998) from the Canada Council for the Arts and first prize at the 1991 International Sculpture Symposium, "Matière à Musée" in Montreal.