The seals’ ability to detect the amount of oxygen in their blood may help them make diving decisions and avoid drowning.

As seals dive more frequently—and for longer—than humans do, the range of carbon dioxide in their bodies varies more widely.

Scientists have discovered a new way oxygen can form in carbon-dioxide-rich atmospheres of worlds beyond our own —- challenging assumptions about how we should search for life on other planets ...

A team of scientists have elucidated an ancient mechanism of cellular respiration. To that end, they studied bacteria that feed on the gases carbon dioxide and hydrogen, and turn them into acetic acid ...

Discover how CO2 training improves oxygen efficiency, mental focus, and endurance for athletes through specialized breathing ...

Human respiration takes in oxygen and in turn, we exhale carbon dioxide. Thus, an uptick of carbon dioxide levels around us can indicate we’re in the presence of other humans, and also ...

More CO2 leads to more warming ... Ocean ecosystems play a critical role in carbon storage and oxygen generation. Some of these ecosystems are under threat; others remain unexplored.