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  2. 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]

  3. Carbon dioxide in Earth's atmosphere - Wikipedia

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

    Early in the Earth's life, scientists have found evidence of liquid water indicating a warm world even though the Sun's output is believed to have only been 70% of what it is today. Higher carbon dioxide concentrations in the early Earth's atmosphere might help explain this faint young sun paradox.

  4. 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 ...

  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. Great Oxidation Event - Wikipedia

    en.wikipedia.org/wiki/Great_Oxidation_Event

    However, the bulk was likely nitrogen N 2, and carbon dioxide CO 2, which are also the predominant nitrogen- and carbon-bearing gases produced by volcanism today. These are relatively inert gases. Oxygen, O 2, meanwhile, was present in the atmosphere at just 0.001% of its present atmospheric level.

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

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

    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 ...

  9. Atmosphere of Earth - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Earth

    The atmospheric pressure at the top of the stratosphere is roughly 1/1000 the pressure at sea level. It contains the ozone layer, which is the part of Earth's atmosphere that contains relatively high concentrations of that gas. The stratosphere defines a layer in which temperatures rise with increasing altitude.