Folks who believe the human-caused climate change story really, really, should not have kids. We need to keep the IQ pool clean and healthy and those types of gullabilities - well, we see the results on CNN/MSNBC/congress, and city streets in tents.
The enviro-nazis are insuring that the world portrayed in the movie Idiocracy becomes reality.
Only those incapable of providing for their own survival and on welfare are having large families.
Productive people, creative people, educated people (on the whole) have few or no children.
If this trend continues the unproductive and less intelligent will out produce the intelligent and productive.
In a few generations the intelligence and the desire to work will have been bred out of the human genome and we will live in the world of Idiocracy.
That is assuming that human race survives.