Is CO2 So High We Can’t Breathe?

• There is no threat to our ability to breathe. Oxygen and nitrogen still make up 99% of our atmosphere. With Argon, we are at 99.9 %. The trace gases including Methane, CO2 and the other greenhouse gasses make up a minuscule part of what we breathe, but they have important abilities to make the Earth warmer. These gases in the atmosphere (in order) by percent are:
  • Nitrogen         78.08%
  • Oxygen           20.95%
  • Argon             0.93%
  • Carbon Dioxide    0.040 – 0.042
  • Neon              0.0018%
  • Helium           0.00052%
  • Methane        0.00018% 
  • Krypton         0.0001%  
  • Hydrogen      0.00005%

(Source: NOAA Global Monitoring Laboratory (.gov))