Human output of carbon dioxide is small compared to natural output by volcanoes, for example.

Name: Human output of carbon dioxide is small compared to natural output by volcanoes, for example.
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Question

Quizplus · Accepted Answer

This statement is false. Natural sources like volcanoes emit around 200 million tons of carbon dioxide each year, while human activities emit around 30 billion tons of carbon dioxide each year. Human emissions are therefore much larger than natural emissions.

Human Output of Carbon Dioxide Is Small Compared to Natural