Scientists believe that the increasing number of extreme weather events in Australia and Oceania, such as cyclones, droughts, and fires, is the result of __________.

Climate change is increasing the frequency or severity of many extreme weather events, including heat, drought, fires, and some powerful storms. Deforestation can worsen certain environmental problems, but it does not best explain the broad increase described across Australia and Oceania. The correct choice is climate change.

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