The heat wave sweeping through the N.W.T. and Yukon will have a major impact on permafrost thaw in both territories, experts warn. 

Permafrost in Canada's northwest is thawing much faster than researchers predicted 20 years ago, according to the president of the International Permafrost Association.

Permafrost preserved the ‘oldest blood in the world’ boosting hopes of bringing extinct species back to life.

Permafrost underneath the structure is believed to have melted since last fall and key parts of the building might not be able to withstand strong winds or an earthquake, according to a professional engineer hired by Dawson City.