He was born in Ann Arbor, Michigan, United States, to Canadian parents, and immigrated to Canada.

He continued contributing to the station's weekly midday program News and Views with Rob Snow until a Bell Media restructuring in mid-November 2019.

On 31 December 2019, in an emotional farewell, Green ended his radio career on CFRA with the following final words:“I believe, that we all have a responsibility, more than that, we have a duty, to do whatever we can, in whatever fashion we can, to make a better world for our children.

[6] In a late 1960s protest, Green urged his listeners to fill bottles of water taken from the polluted Rideau River, and to ship them to the Ontario legislature at Queen's Park.

It lobbied and petitioned Members of Parliament, while he appeared before parliamentary and senate committees tasked with the process of making policy and enacting new gun law legislation in Canada.

[11] He has received the Friendship Award from the Royal Canadian Legion,[7] the Chief of Defence staff medallion,[7] and the Senate 150th Anniversary Medal.

[13] After raising CA$280 thousand during an on-air campaign for a little boy requiring life-saving medical treatment in the United States, he was presented with the Helen Keller Fellowship Award from Lions International.

[20] On 24 October 2020, Green publicly endorsed Matthew Fisher, a former journalist who was a foreign correspondent for The Globe and Mail, Sun Media and Postmedia Network for 34 years, to become the Conservative MP for Kanata—Carleton.

In a 1994 complaint to the CBSC, listeners alleged that Green had been rude and abusive to a caller who identified herself as a Christian.

Although the CBSC determined that Green's conduct had contravened its guidelines on discrimination, it also decided that the station had responded appropriately, and the group did not prescribe any further action.