Canada Fires 2025 Causes And Effects. For days, experts say human activity, not lightning, likely started most of the fires. Decades of putting out fires has led to a “fire paradox” and makes fighting fires in the future more difficult, according to a 2019 paper examining canada’s wildfire management.
In canada, roughly half of all fires are now caused by lightning. But lightning strikes are on the rise and expected to further increase with climate change.