Canada's largest national park – established 95 years ago to protect the last herds of northern bison – is deteriorating and faces significant threats from climate change and industrial development, says an international agency that monitors world heritage sites.
The International Union on the Conservation of Nature (IUCN), which is based in Switzerland and was established in 1948 to encourage conservation and natural diversity, released a World Heritage Outlook report this week that examines the condition of ecologically important sites around the globe.