Hooray for Carbon Dioxide! It's Helping to Feed the World's Hungry

Among the greatest challenges humankind has faced throughout its history, feeding the world’s hungry ranks at or near the very top of the list. And with the world’s population expected to top nine billion between 2050 and 2100, this issue will surely become even more important in the coming decades. However, what many people may not realize is that the carbon dioxide humans have been pumping into the air since the middle of the 20th century has enriched plant growth, thereby contributing to record crop yields, which has helped to bring about the largest decline in hunger, starvation, and malnutrition in human history. Most of the world’s plant life arose during times when carbon-dioxide levels were much higher than they are today. Over time, the amount of carbon dioxide in the atmosphere slowly declined, to the extent that during the most recent ice age, atmospheric carbon-dioxide levels fell to dangerously low levels -- just 180 parts per million (ppm). Plants...(Read Full Article)

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