So I planted 1,000 trees over an eight-year period, and then Ronny
Reagan said that trees cause pollution. Apparently, a University of
Helsinki study confirmed this assertion in finding that trees,
especially conifers, release volative organic compounds that pollute.
In addition, they release NOX which contributes to smog.

I'm not getting into a ****ing contest with those who disagree; hell,
I ain't a scientist anyway. But there is no doubting the fact that
trees use copious amts. of H2O which, we are remineded, is in short
supply for an ever-growing world population.