These lower values tend to be higher in the atmosphere. (All 3D cells of the model are opaque, revealing a solid brick of data.) During this month, the higher values of CO 2 coalesce around the "equatorial belt."īy mid-July 2020, CO 2 values between 385 ppm and 405 ppm in the atmosphere become transparent. The visualization starts in June 2020, showing all of the model’s values of global CO 2. (The term "parts per million" refers to the number of carbon dioxide molecules per million molecules of dry air.) However, around 2.5 parts per million (ppm) remain in the atmosphere every year, causing a steady rise in concentrations that scientists have been tracking since the 1950s, at surface stations. Every year, the world’s vegetation and ocean absorb about half of human-caused CO 2 emissions, slowing the rate of greenhouse gases entering the atmosphere. This video shows the accumulation of atmospheric carbon dioxide (CO 2) during a single calendar year.
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