According to the CBC.

47% of the fires being dealt with in Alberta, were caused by humans. (Not necessarily intentionally here wink wink)
46 of the other 53% of fires, are being investigated as possibly being started by human activity. #Climatechange #AbFires #Albertaarson pic.twitter.com/WNvyI2fpYl

— PurΞLovΞ ❤🇨🇦 (@RealPureLove) May 20, 2023