430ppm
Earth’s CO2 Levels Hit Record High, Surpassing 430ppm for First Time in Human History
Atmospheric CO2 Reaches Historic High: A Dire Climate Milestone For the first time in human history, atmospheric carbon dioxide (CO2) levels have surpassed 430 parts per million (ppm), hitting a monthly average of 430.2 ppm in May 2025, according to the Scripps Institution of Oceanography. This alarming milestone underscores the accelerating pace of global warming, […]