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  2. Carbon dioxide in Earth's atmosphere - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_in_Earth's...

    Atmospheric carbon dioxide plays an integral role in the Earth's carbon cycle whereby CO 2 is removed from the atmosphere by some natural processes such as photosynthesis and deposition of carbonates, to form limestones for example, and added back to the atmosphere by other natural processes such as respiration and the acid dissolution of ...

  3. What Earth was like last time CO2 levels were so crazily high

    www.aol.com/earth-last-time-co2-levels-090000507...

    Climate 101 is a Mashable series that answers provoking and salient questions about Earth’s warming climate. The last time CO2 levels were as high as today, ocean waters drowned the lands where ...

  4. Planet-warming gas levels rose more than ever in 2024 - AOL

    www.aol.com/news/planet-warming-gas-levels-rose...

    These factors meant that between 2023 and 2024 CO2 levels increased by nearly 3.6 parts per million (ppm) molecules of air to a new high of more than 424ppm. [BBC]

  5. Levels of climate-warming greenhouse gases in atmosphere ...

    www.aol.com/levels-climate-warming-greenhouse...

    On the current rate at which carbon dioxide and other gases are building up in the atmosphere, the world will see temperature rises well beyond 1.5C. Levels of climate-warming greenhouse gases in ...

  6. Keeling Curve - Wikipedia

    en.wikipedia.org/wiki/Keeling_Curve

    Atmospheric carbon dioxide (CO 2) concentrations from 1958 to 2023. The Keeling Curve is a graph of the annual variation and overall accumulation of carbon dioxide in the Earth's atmosphere based on continuous measurements taken at the Mauna Loa Observatory on the island of Hawaii from 1958 to the present day.

  7. Climate Clock - Wikipedia

    en.wikipedia.org/wiki/Climate_Clock

    This specific installation is expected to be one of many in cities around the world. [8] At the time of installation, the clock read 7 years and 102 days. Greta Thunberg , Swedish environmental activist , was involved in the project early on, and reportedly received a hand-held version of the climate clock.

  8. Carbon levels in the atmosphere ‘hit new record high ... - AOL

    www.aol.com/news/carbon-dioxide-warning-world...

    Carbon dioxide levels have soared to 407.8 parts per million in 2018, up from 405.5 parts per million (ppm) in 2017. Carbon levels in the atmosphere ‘hit new record high’, WMO warns Skip to ...

  9. Atmospheric carbon cycle - Wikipedia

    en.wikipedia.org/wiki/Atmospheric_carbon_cycle

    Although individual CO 2 molecules have a short residence time in the atmosphere, it takes an extremely long time for carbon dioxide levels to sink after sudden rises, due to e.g. volcanic eruptions or human activity [17] and among the many long-lasting greenhouse gases, it is the most important because it makes up the largest fraction of the ...