Guests: Todd Irvine, arborist and founder of City Forest

When a woman was killed by a falling tree branch in Trinity Bellwoods park recently, it struck many as an unforseeable freak accident. But the danger was foreseen by at least one man, and his warnings went unheeded as the Star reported this week. Arborist Todd Irvine has also been warning the city that its maintenance of trees is often making them more dangerous, and joins host Edward Keenan to explain how and why the city needs to improve how its treats the urban forest.

Read the related column here.

This episode was produced by Ed Keendan, Julia De Laurentiis Johnston and Sean Pattendon.