Damn Global Warming!...................
Al Gore warned us about that! He told us that inhaling increased amount of CO2 makes you dumb.Never mind that atmospheric CO2 is less than 1% of the atmosphere, and the concentration of CO2 in the lungs after inhalation must be at least an order of magnitude greater than that, considering that you can never exhale all of the gas in your lungs (if you do, you have what doctors call a “collapsed lung” - and that ain’t good).