The sky is falling! Animals exhale CO2 and what has been consuming that for eons? Plants, trees, shrubs of all sorts. Once the so called carbon emission problem is solved everyone will be complaining that there's too much oxygen relative to CO2 and so we need to regulate X, Y, Z so there isn't a catostrophic end to plant life. More leftist gloom and doom designed to guilt us back to the Stone Age. While elites jet around the planet spewing out more fossil fuel emissions than they have hot air.