Further to that, I'm not sure it's a good idea anyway in many cases if you're worried about sustainability of the human race and our current lives - if we all stopped having children, society would pretty much collapse. Who's going to look after us when we're old? Clearly we don't all need to have 12 children, but 0 won't work either.
The goal of combating climate change is to make the planet more liveable. You don't achieve that by not living.
It's not some moral game of attribution of blame, it's just maths. Fewer people produce less CO2.
That, or we end as species. Guess what? Worst case of global warming, mankind extermination. "Best" case, also mankind extermination.
Talk about premature optimisation!
If you are unhappy with the level of education of the public, then try to work on that instead of feeling encouraged to spread your superior genes.
I recommend Carl Zimmer's latest book "She Has Her Mother's Laugh" for a look at the past and the present through the prism of heredity.