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<blockquote class="twitter-tweet"><p lang="en" dir="ltr">ð 417.79 ppm <a href="https://twitter.com/hashtag/CO2?src=hash&ref_src=twsrc%5Etfw">#CO2</a> in the atmosphere February 10, 2021 ð Up from 416.08 ppm a year ago ð Mauna Loa Observatory <a href="https://twitter.com/NOAA?ref_src=twsrc%5Etfw">@NOAA</a> data & graphic: <a href="https://t.co/MZIEpig97P">https://t.co/MZIEpig97P ð <a href="https://t.co/DpFGQoH37B">https://t.co/DpFGQoH37B tracking:Â <a href="https://t.co/PTTkLiy4Xs">https://t.co/PTTkLiy4Xs ð View & share often ð <a href="https://t.co/CxtB5FudWR">pic.twitter.com/CxtB5FudWR</a></p>— CO2_Earth (@CO2_earth) <a href="https://twitter.com/CO2_earth/status/1359885756567756805?ref_src=twsrc%5Etfw">February 11, 2021</a></blockquote> <script async src="https://platform.twitter.com/widgets.js" charset="utf-8"></script>
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