Rising carbon dioxide levels are heating the planet but may also have an alarming, invisible impact on the human body, according to new research.

Humans evolved in an atmosphere containing roughly 200–300 parts per million (ppm) of carbon dioxide (CO₂). Today, that figure sits above 420 ppm, higher than at any point in the history of our ...

About half of all the CO2 humans have ever emitted still hangs over our heads, literally. Since the Industrial Revolution began, that totals nearly 1,000 metric gigatons stuck in the atmosphere. Now, ...

Excess carbon dioxide emitted by human activities—such as fossil fuel burning, land-use changes, and deforestation—is known as anthropogenic carbon dioxide. Approximately thirty percent of this ...

Sept 4 - Carbon dioxide helps plants grow but it can also worsen conditions for plant growth, contrary to a graphic shared on social media that misleadingly suggests higher CO2 in Earth’s atmosphere ...