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World - CO2 Levels In Earth's Atmosphere Just Reached Highest In Human History

April 2022 saw levels of carbon dioxide in Earth’s atmosphere tip over 420 parts per million (ppm) — that’s the highest level ever recorded in human history.

April 2022 saw levels of carbon dioxide in Earth’s atmosphere tip over 420 parts per million (ppm) — that’s the highest level ever recorded in human history.

The Scripps Institution of Oceanography at UC San Diego reported that the monthly mean baseline carbon dioxide (CO2) for April 2022 at Hawaii’s Mauna Loa Observatory was 420.02 ppm. This was later backed by recordings from the National Oceanic and Atmospheric Administration (NOAA), with their data showing levels reached 421.33 ppm on May 4, 2022.

The figures are a startling indication of how human activity is radically changing our planet — and how we're not doing nearly enough to remedy our impact.

Carbon dioxide is one of the most important greenhouse gases linked to climate change as it lingers in Earth's atmosphere for centuries. Although naturally found in trace levels in Earth’s atmosphere, the concentration of this heat-trapping gas has been increasing since the Industry Revolution in the 19th century as it’s released through human activities such as burning fossil fuels and deforestation.

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