3 ms·

3500ppm? That would imply an average CO2 level well above 1000ppm. No wonder why it's impossible to stay focused in lecture halls...

• MichaelZuo 4y ago
  Yeah, that really makes me rethink my entire education experience...
  • JohnBooty 4y ago
    ...you could always distract yourself by thinking about all of the political and military decisions that have been made throughout history, affecting millions and billions of human lives, in stuffy cramped rooms with excessively high CO2 levels. ...wait, that's not helping?
    • MichaelZuo 4y ago
      The utopia of adequate ventilation.
    • p1esk 4y ago
      A cynical view - with better CO2 levels the outcome of those political/military decisions could be worse.