Is Wood Buffalo National Park 'in danger'? UNESCO investigators are in Canada to find out

A United Nations body that monitors some of the world's greatest natural glories is in Canada again to assess government responses to ongoing threats to the country's largest national park, including plans to release treated oilsands tailings into its watershed.

In a series of meetings beginning Thursday, UNESCO investigators are to determine whether Wood Buffalo National Park should be on the list of World Heritage Sites In Danger— a move the agency has already deemed "likely."

"Canada is not delivering," said Melody Lepine of the Mikisew Cree First Nation, which first brought concerns about the northern Alberta park to UNESCO's attention.

Bigger than Switzerland, Wood Buffalo is one of the world's largest freshwater deltas and is rich in biodiversity, including nesting sites for endangered whooping cranes. Its maze of wetlands, rivers, lakes and prairie is the largest and most intact ecosystem of its type in North America.

But the park, which straddles Alberta and the Northwest Territories, is slowly drying up through a combination of climate change and upstream developments such as British Columbia's Site C dam. As well, research has found increasing evidence of seepage from oilsands tailings ponds into upstream ground and surface water.

In 2017, UNESCO found 15 of 17 ecological benchmarks in the park were deteriorating and gave Canada a list of improvements required for the park to retain its status. This week's meetings are to assess federal and provincial responses.

A report prepared for Mikisew by scientific consultant Carla Davidson credits the province for establishing buffer areas around the park and Ottawa for water management plans within it. But the document finds little else has been done.

A risk assessment for oilsands tailings ponds hasn't begun, the report says. Sites in the oilsands region used by whooping cranes haven't been identified.

Proposals from First Nations to address knowledge gaps have been rejected. No land use plans exist.

The report says provincial groups studying scientific issues have been given restrictive terms of reference.

For example, a group studying mine reclamation can only look at ways to treat and release effluent. Cultural impacts on local First Nations are not considered, nor are cumulative effects of separate developments.

"Alberta has declined so far to implement most of [the recommendations]," the report says. "Instead, we see many examples of Alberta relying on the very policy instruments that have gotten the park to where it is today."

Meanwhile, both levels of government are preparing regulations to govern the first releases of tailings into the Athabasca River.

Those rules are expected in 2025.