Don't KID yourself. Smaller families can save the planet

"Don't KID yourself" would be my advice to future generations. Studies have shown that people who plan to have children do it for Themselves, not for the benefit of the kids they produce.
They do it so others will look up to them, and for many other reasons, but not with the wellbeing of the child in mind.
Of course there are all the unplanned and unwanted births to deal with as well.
So, "Don't KID yourself" simply means don't have kids. Once you have them, you have to raise them, be liable for them, educate them, be liable for their actions, etc..
As Dr.Albert Bartlett showed in his "Brutal End to Growth" videos,
(http://blog.green-life-innovators.org/2009/11/07/the-brutal-end-of-the-growth-paradigm/)
zero population growth WILL happen somewhere along the line. The longer we wait to choose the world population where it happens, the worse the effects will be on those living at the time.

For the USA, I suggest a simple way to get the ball rolling. Presently, our congress is looking for money to fund the new Medical overhaul plan. They are planning many new taxes.
They are looking at eliminating all sorts of deductions, for instance.
I suggest that they eliminate all deductions that reinforce the archaic idea that more children is better. I'm not even suggesting that they eliminate those deductions for any children who are currently getting those deductions. Instead, I suggest that they set the program to start some years down the line, let's say 10 years from the day the change in tax code is enacted. They would also broadly publicize the fact that is going to happen and when.