Question

Which threatens to increase the number and size of wildfires?​

Answer 1

Answer:

Unusually large wildfires ravaged Alaska and Indonesia in 2015. The following year, Canada, California and Spain were devastated by uncontrolled flames. In 2017, massive fires devastated regions of Chile - and now, a deadly blaze in Portugal has claimed dozens of lives.

So, have wildfires actually increased globally, or does it just seem that way because we're tuned in more to bad news and social media?

Science suggests that over the past few decades, the number of wildfires has indeed increased, especially in the western United States. According to the Union of Concerned Scientists (UCS), every state in the western US has experienced an increase in the average annual number of large wildfires over past decades.

Extensive studies have found that large forest fires in the western US have been occurring nearly five times more often since the 1970s and 80s. Such fires are burning more than six times the land area as before, and lasting almost five times longer.

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