On average, we inhale 20 lbs of air per day. This is greater by weight than the food or water we consume in a day. We should be paying a lot more attention to air quality.
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We can't even slow down the consumerism. Everyone's job around the world is someway tied into this rampant production of cheap plastic goods to replace cheap plastic goods from yesterweek. You try and nip it in the bud everyone is liable to lose their job and everything might very well collapse because of how we chose to stack this deck of cards on this planet.
We used to burn leaded gasoline in our cars, coal pucks to heat our homes, smoke directly into our lungs on purpose, god knows what else.
I do agree with the broader point though.