Stock photo: growing concentration of carbon dioxide ob blackboard
Stock photo: growing concentration of atmospheric carbon dioxide recorded at Mauna Loa observatory, Hawaii - rough representation with white chalk on school blackboard, eraser smudges
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#381296 growing concentration of carbon dioxide ob blackboard by PixelsAway Stock photo PixelsAway

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Keywords

black blackboard carbon dioxide chalk chalkboard CO2 concentration curve dust environment eraser global warming graph growth horizontal Mauna Loa measurement nobody observation smudge white yellow