Global warming does not cause fires by itself. Rather, the increased temperatures associated with global warming simply leave trees drier and more vulnerable to catch on fire in the presence of a spark. Fires in British Columbia are specifically caused by either people or lightning. Over the past 10 years, 43.8% of fires have been caused by people and 56.2% have been caused by lightning.
In addition to the answer above, fires can also affect overall global warming as well. Fires burn acres of wildlife, releasing greenhouse gases like CO2 into the air. All combined fires release a CO2 amount about 50% the amount of fossil fuel combustion. The gases emitted by the burning forest contribute to the hotter, drier forest conditions that can spark forest fires, and the cycle continues.
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