10 millionth tree in Sudbury, Ont., planted with Jane Goodall pitching in

Greater Sudbury marked a major milestone on Thursday the 10 millionth tree was planted as part ofregreening efforts that started more than four decades ago.

The tree was embedded near the William Bell Gazebo at Bell Park, an event taken in bya large crowdand dignitaries, including Britishprimatologist and anthropologistJane Goodall,founder of the Jane Goodall Institute and a UN messenger of peace, Canadian Prime Minister Justin Trudeau, and Environment and Climate Change MinisterSteven Guilbeault.

While some of Goodall's fans were at the event, so too were a small number of protesterswho periodically interrupted speeches, including when she and Trudeau were speaking. They held banners and signs centred on different issues and did not appear to be organized.

'Centre of environmental innovation'

Mayor Brian Bigger said that when he was a child in Sudbury in the 1960s, the area was "black rock, dead tree stumps and a desolate landscape." The environmental devastation from mining was widespread.

"Who could have imagined that within a single generation roughly 40 years we would transform our city into a centre of environmental innovation and reclamation," Bigger said.

"It's globally significant and it's a reason for hope."

The regreening program began in 1978. Since then, 80,000 hectares of land havebeen ecologically recovered.

Bigger said the work isn't stopping, despite the milestone.

"We still have over 30,000 hectares of land that remains unrestored. Just imagine what our city will look like in another few decades."

Trudeau said planting the 10 millionth tree in Greater Sudbury after almost 45 years of regreeningefforts is a great example of hope.

"Planting trees is not just about planting seedlingsit's about planting hope,it's about planting a future," he said.

"It's a reminder that as straightforward as it seems to simply plant a tree, it's proof positive that each of us can make a difference."

Guilbeault also helped out in the tree-planting portion of the event.

Goodall, 88,told onlookers that she had beeninSudbury 20 years earlier when the regreening efforts were already well underway. She said she's been travelling around the world,speaking about ways to protect the environment.

"To see the way that the regreening of Sudbury has progressed during those 20 years is absolutely amazing."

Goodall said young people are her reason for having hope.

"I've seen it here in Sudbury 20 years ago and today, young people giving up their free time to plant trees, to breed fish, to release [fish] back, to create the ecosystems in your lakes and your hills."

Peter Beckett was among the individuals who worked on the regreening efforts early on, and is now chair of the Vegetation Enhancement Technical (VTAC)Advisory Panel in Greater Sudbury.

"At that time [1978], we never would have expected we would be having thiscelebration todayand that the program would have lasted so long," he said.

"It's taken a long time, but by sheer perseverance and work by all the citizens of Sudbury, we've arrived at this day."

But Beckett said the work isn't done yet.

"The program is going to continue. It's probably going to continue until we've got every hill that is barrengreen again in Sudbury."