[3] His manual, based on Toronto's experiences, is called, Food for City Building: a Field Guide for Planners, Actionists and Entrepreneurs.
[8] From 1989 to 2013, he wrote a column for NOW Magazine, generally on themes that linked social justice, public health and green economics.
Roberts published "A Green New Deal" in the April-May 1992 issue of Canadian Dimension, which is believed to be the first use of the term in print.
[11] Prior to his involvement with environmental issues, Roberts was active in the Trotskyist movement during the 1970s, and later worked for two decades in community organizing, university teaching, media, labor education, industrial relations and union administration.
[13] Roberts served on the boards of FoodShare,[14] Unitarian Service Committee,[15] Alternatives Journal, as well as Sustain Ontario's Advisory Council.