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RALPH KEELING
You’re the centerpiece in a phenomenon not seen in 30 million yearsEarth's atmosphere has surpassed 430 ppm of carbon dioxide in May 2025, a record high in millions of years, primarily due to human activiti...- Carbon dioxide reaches dangerous levels, more than plants can take inThe average carbon dioxide level for May was 419.13 parts per mn.
- CO2 reaches its highest level in more than 4 million yearsThree centuries ago, before the beginning of the industrial age, geological records show that number was 280 ppm. In other words, by burnin...
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