Atmospheric carbon dioxide levels reached a new peak of 431 parts per million in April, according to data from the Mauna Loa Observatory. This trend continues a steady climb from pre-industrial levels of 280 ppm, highlighting the ongoing challenge of global warming. While the US saw brief emission reductions in 2023 and 2024, the trend reversed in 2025. This increase is linked in part to the rising electricity demands of AI data centers, creating a new tension between technological growth and decarbonization goals.
