Question

what happens when your co2 levels are high

Answer 1

High co2 levels will increase the temperature as carbon dioxide is a greenhouse gas.

Answer 2

"Hypercapnia, also known as CO2 retention, hypercapnea, and hypercarbia, is a condition of abnormally elevated carbon dioxide (CO2) levels in the blood. Carbon dioxide is a gaseous product of the body's metabolism and is normally expelled through the lungs.

"Hypercapnia normally triggers a reflex which increases breathing and access to oxygen, such as arousal and turning the head during sleep. A failure of this reflex can be fatal, for example as a contributory factor in sudden infant death