The carbon dioxide level has risen to 415 parts per million (ppm) from 280 ppm at the preindustrial level, around the year 1800. In the year 2013, carbon dioxide levels surpassed 400 ppm for the first time in recorded history. At its Mauna Loa observatory in Hawaii, the carbon dioxide measurement had a reading of about 410 ppm in 2019, 413 ppm in 2020, and 415 ppm in 2021. That is, we are adding at least two ppm of carbon dioxide to the Earth's atmosphere every year. Today, carbon dioxide levels are higher than at any point in at least the past 800,000 years.
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Esta historia es de la edición January - February 2022 de Scientific India.
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