24/04/2026
Scientists recently confirmed that Earth’s atmosphere has surpassed 430 parts per million of carbon dioxide, a concentration not experienced for more than three million years. The measurements were recorded at Mauna Loa Observatory, the world’s longest running carbon dioxide monitoring site. In early March, atmospheric CO2 levels peaked at 430.60 ppm, marking a major milestone that climate researchers have monitored closely for decades.
Before the industrial era, atmospheric carbon dioxide levels averaged around 280 ppm. Scientists say the dramatic increase is primarily linked to fossil fuel combustion, deforestation, and industrial activity worldwide. Roughly twenty five percent of emitted carbon dioxide is absorbed by Earth’s oceans, where it forms carbonic acid and increases ocean acidity. This process threatens corals, plankton, mollusks, and other marine organisms that form the foundation of ocean ecosystems.
Researchers warn that ocean acidification may now be occurring faster than at any period during the last 300 million years. At the same time, polar regions continue warming rapidly while ice sheets and oceans respond to rising global temperatures. Experts caution that if emissions continue increasing, atmospheric carbon dioxide levels could exceed 500 ppm within this century, pushing Earth toward climate conditions not experienced for tens of millions of years.
Ugbede Iduh Nasrda Official