What continues to gnaw at me regarding this issue is not just that a clear inconsistency in views of secular environmentalists regarding contraception's effect on the environment seems to exist.
My Dad always told me, "if you think you know what you're looking at, take a step back and look at the bigger picture."
The goal of population control advocates is to reduce the number of human beings on the planet, for the sake of the earth. Essentially, they are little by little removing human beings from the environmental equation.
The more fact sheets I read from Population Connection's website, the more my head spins. I have read paper after paper discussing human activity. Growth rates, resource depletion, deforestation, highway congestion, water shortages...the hopeless list and scope of potential disasters humans will either cause or face is alarming--alarming enough to reclassify humans as destructive parasites upon the earth to be controlled, if not eradicated.
Self-loathing and self-destruction isn't limited to the individual human, I guess. When a society lacks hope, it will turn on itelf, just like an individual will. Does a suicide victim care about contaminating the floor with their blood? After all, someone else will clean up the mess. Neither does a self-destructive society care that they're contaminating water with their tools of self-destruction. Once we're gone, nature will clean up the mess.
It's more important than ever that we cling to our Lord and His Church if we are going to turn any of this around. As Catholics, we should be spending some time every day in formation activities that expand our understanding of our Lord and His Church.
This is as good a place to start as any:
COMPENDIUM OF THE SOCIAL DOCTRINE OF THE CHURCH