Rising carbon dioxide levels are being detected within the human body, with new research warning a key blood marker for the gas could near its healthy limit within decades if current trends continue.

CO2 levels are altering the chemical makeup of human blood over time, and may lead to health problems down the road. | Credit ...

A carbon dioxide (CO2) blood test measures the amount of CO2 in your body. It is typically performed in conjunction with other blood tests to assess for electrolyte imbalances. Levels that are too ...