ELi5: What causes wildfires and why are they so difficult to put out?

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Is there a way we can prevent them from occurring in the first place, or is it inevitable during the summer months?

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Anonymous 0 Comments

To make fire there’s three ingredients: oxygen (air), fuel (wood), and an initial spark/heat (summer).

During the summer when it’s hot, the forest is filled with dry woods cause the heat has reduced the moisture level. So during summer, wildfires are more susceptible; however, it’s not that simple.

Most wildfires are caused by human error/intervention. Like people who leave glass bottles, or dropped a lighter. These glass bottles, when the sun hits at the right angle can act as a magnifying glass – which will cause an initial spark that starts the fire. That’s why Smokey the Bear keeps saying “only YOU can prevent wildfires!”

They’re difficult to put out because when the wind blows, it makes the fire stronger because of the oxygen. And when the fire gets stronger, it spreads faster to the surrounding wood. Then with more wood increases the fire. It’s a vicious cycle.

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