Once Upon a Time: A true story about the miracle molecule--carbon dioxide (Free PDF)

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Once Upon a Time: A true story about the miracle molecule--carbon dioxide provides scientific information in a manner that is simple enough that even a young child can enjoy and understand. The story is told through the adventures of three young girls who live on a tree farm in Oregon. They learn from their kindly neighbor, a scientist, that carbon dioxide (CO2) is the miracle molecule that is necessary for life on earth to exist and that increasing CO2 is helping plants to grow faster and bigger. 

This educational comic book was created by the CO2 Learning Center team, which is comprised of highly motivated scientists and climate experts concerned about the quality and state of science education in America. They promote the scientific method rather than indoctrination. Their backgrounds include physics, chemistry, geology and more. Most hold PhDs or advanced degrees in applied sciences and promote scientific thought over political agendas.