evidence: NASA Earth Observatory. 2015. "Canadian Wildfires Produce River of Smoke." June 29. https://earthobservatory.nasa.gov/images/86151/canadian-wildfires-produce-river-of-smoke [...] Natural Resources Canada. 2024a. "Canada’s record-breaking wildfires in 2023: A fiery wake-up call." May 21. https://natural-resources.canada.ca/simply-science/canadas-record-breaking-wildfires-2023-fiery-wake-call/25303 [...] Webber, Tammy, and Noah Berger. "Canadian wildfires hit Indigenous communities hard, threatening their land and culture." Associated Press, July 19. https://apnews.com/article/canada-wildfire-indigenous-land-first-nations-impact-3faabbfadfe434d0bd9ecafb8770afce