Climate Change Triggers 'Permafrost Landslides' with House-Size Ice Blocks in Canada's Northwest Territories

Live Science · 2026-10-26
Climate Change Triggers 'Permafrost Landslides' with House-Size Ice Blocks in Canada's Northwest Territories

Researchers have identified a new type of permafrost landslide in Canada's Northwest Territories, where thawing ground releases massive blocks of ice the size of houses. This phenomenon, documented for the first time, is directly linked to rising temperatures in the Arctic, which are destabilizing terrain that has been frozen for millennia. The study, published in a leading scientific journal, focuses on the Peel Plateau region, where retreating permafrost is causing dramatic changes to the landscape. Lead author Dr. Steven Kokelj from the Northwest Territories Geological Survey emphasizes that these events provide a 'potential glimpse into the future' as the climate continues to warm. The landslides pose serious risks to infrastructure, including roads and pipelines, and can disrupt local ecosystems by altering water quality and fish habitats. For Indigenous communities who rely on the land for traditional practices, the changes threaten cultural and subsistence activities. Scientists warn that similar events are likely to become more frequent across the Arctic, underscoring the urgent need for adaptation and monitoring. This discovery highlights the cascading impacts of climate change on northern environments.