TRAILBLAZING

Early on a golden morning in late August, a lone helicopter soars through the Valley of a Thousands Falls on Mount Robsons rocky western flank. Ahead, a white cascade of water plunges over steep cliffs into the winding river thousands of metres below.

Looking through a rounded, bubble-like window, Mount Robson Provincial Park manager Elliott Ingles spots fragments of what was once a section of the Berg Lake Trail.

Directly under us, you can see the trails just gone. The trail goes straight to the river and the flood washed out 500 metres of the trail, said Ingles, speaking loudly into a headset over the helicopters steady thrum.

Theres not really a way to rebuild it there.

Entire chunks of the Berg Lake Trail are still missing, ripped away by a monstrous flood brought on by the heat dome that hung over British Columbia in 2021. Thousands of litres of water, shed by baking glaciers, roared down the mountain, tearing up the trail in the process.

Hundreds of long-weekend hikers were still on the trail as the water rose.

Mount Robson, the tallest peak in the Canadian Rockies and the centre of one of the oldest provincial parks in British Columbia, finds itself at a critical point in its history, staring down climate change.

BC Parks will restore the area, which will keep the Berg Lake Trail partially closed for two more years, while trying to answer a critical question: How exactly to rebuild against inevitable, unpredictable crises, while balancing the need for tourism and conservation?

Other parks in Canada are facing similar challenges, from eroding cliffs in Prince Edward Island National Park to wildfire-stricken forests in Albertas Jasper National Park. The answers found at Mount Robson could become a model that eventually helps preserve Canadas parks for future generations.

At Berg Lake, he sees scars. The stunning glaciers, already with a finite lifespan, are noticeably smaller than when he took over management of the park a half-decade ago.

The mountains are shifting. Thats inevitable, but it seems faster and more frequent, said Ingles.

Even at an elevation of 1,600 metres halfway the distance to base camp on Mount Everest temperatures at Berg Lake reached a punishing 37 C under the heat dome in June 2021.

We were watching the glaciers. It looked like they were sweating, Ingles recalled, squinting through the mid-morning sun.

Experts have said the intensity of last years heat wave, which brought days of record-breaking temperatures to much of B.C., wouldve been highly unlikely if not for climate change.

A 2018 report found extreme weather events will become more frequent and more intense if Canada continues warming at its current pace, increasing the likelihood of severe heat waves and flooding, as well as drought and wildfire risk.

We are expecting to see, with the introduction of more greenhouse gases, further heat domes, further heat waves that will punish the glaciers that we have in [Mount] Robson Provincial Park, as it will many of the glaciers throughout the mountain regions of the planet, said Brian Menounos, a University of Northern British Columbia professor and Hakai Institute affiliate who volunteers his time as a consultant for BC Parks.

By 2050, things are really going to change.

Roughly 250 hikers were still up the mountain.

Over the next blistering 48 hours, Ingles slogged up and down the trail four times the equivalent of running four full marathons up and down a mountain.

Parks staff, provincial firefighters, RCMP, search-and-rescue personnel and colleagues from Jasper National Park turned the Whitehorn area into a staging zone.

Hikers who were on the lower half of the trail, from Whitehorn Campground to the trailhead, walked themselves out through murky floodwater. More than 25 people including a five-month-old baby were airlifted out from higher points.

Nobody was hurt, but the trail was battered.

The severity of it was nothing that we could have imagined, Ingles said.

Currently, all thats left of the trail near Whitehorn Campground is a ribbon of dusty earth tracing the rivers edge, before vanishing into the unsteady bank. The internationally recognized, widely Instagrammed Whitehorn suspension bridge stands decommissioned after 150 years.

Mount Robson reached record visitation in 2019, before the pandemic and the flood. More than 100,000 people came for day trips and another 40,000 camped overnight.

On average, hikers tackling the Berg Lake Trail bring roughly $2.4 million in revenue to Valemount, B.C., a growing village southwest of the mountains base a recreation-centric community whose local brewery and coffee shop both have brews named for the peak.

The trail use represented close to 20 per cent of our tourism, said Coun. Pete Pearson, chair of Tourism Valemount. To have it lost for the next couple of years its a big hit for us.

Climate change can affect the length and quality of a tourism season, which has significant implications for visitation and, subsequently, revenue both nationally and for small towns like Valemount, relying on park traffic for income.

Last year alone, Parks Canada drew more than $150 million in revenue nationwide.

The team designing the trail is making decisions based on climate predictions, aerial surveys, 3D laser imaging known as LiDAR scanning, engineering principles, on-the-ground parks expertise and any number of additional factors straining to find the best option for the least amount of money.

The Simpcw First Nation, Neskonlith Indian Band, Skwlax First Nation, Lheidli Tenneh First Nation and Lhtako Dene Nation are all consulting on the second phase of the project, as the trail runs through their territories.

Even after decisions are made, mother nature could interfere. Any minor rockslide or shift in the river can and will send the team back to the drawing board, Ingles said.

The B.C. Ministry of Environment has budgeted $1.75 million for the first third of the rebuild, redirecting funding from other regional parks budgets to fund the project. The cost for the remaining two-thirds has yet to be determined, but a statement said the province will foot the entire bill since the project is not eligible for federal disaster funding.

The work ahead also carries an ethical dilemma: the trail will be rebuilt to survive climate change so tourists can continue visiting for generations, but travel, especially by air, contributes to the carbon dioxide emissions.

Theres also the last-chance tourism phenomenon: landmarks threatened by climate change can attract even more visitors motivated to see the site before it disappears.

The challenge for park managers, like Ingles, across the country running into rebuild scenarios will be finding balance between promoting tourism and ensuring sustainability.

Some experts believe the solution is to change the way Canada markets some of its best destinations: domestically, rather than internationally.

If they come, they come. But dont try to chase those [international] markets because those are the hardest ones to decarbonize, said Daniel Scott, who leads the climate change program at the University of Waterloo.

Ingles has a theory: if people see Mount Robson and are moved by its beauty, as he has been, its possible they go home with renewed commitment to make sustainable change in their lives because they have a better understanding of the masterpieces at stake.

Theres no way were going to stop people from wanting to explore. People have gone to crazy lengths to explore since the beginning of time, he said, standing at the trailhead at dusk.

Hopefully we can offset it, offset their experiences by educating them in the parks on what we can do to help climate change. Hopefully, its an eye-opener for future generations to look at how we recreate.