Trees are essential infrastructure in our towns and cities, say urban foresters

Sunday Edition

People need trees - particularly in our cities. Urban forests clean the air, lower stress levels, reduce energy costs and mitigate flooding. But it's a challenge to nurture trees in the concrete jungle. Gillian talks to three international tree experts: Cecil Konijnendijk, professor of urban forestry at UBC; David Callow, head of Urban Forest and Ecology at the University of Melbourne, and Meaghan Eastwood, senior research scientist for the Toronto and Region Conservation Authority, which manages an urban forest of more than 34 million trees.

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