Thanks, I agree. The balloons should not be left on the ground; they are souvenirs for people to keep and re-use.
If a balloon should happen to burst, the rubber pieces decompose in sunlight as quickly as an oak leaf would.
But - do you think people can understand this: dumping the substance (CO2) that is threatened today with a new tax is similar to the early Patriots dumping the tea that was being taxed ?
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Dunno. Depends on the group.