Abortion and Global warming

[paulpablo]

You're wrong abortion doesn't mean future people don't have the right to exist.

If future people have a right to exist, why then does a woman's unborn offspring not have a right to exist?

They do have a right to exist. The woman also has a right to not allow her unborn offspring to exist. In many situations this prevents over population, overpopulation in most situations results in more crime, more unhappiness, famine, disease.
Also if you look at three of the most populated countries in the world, China, India and the United states of America all three are also the most polluting countries in the world which relates to global warming. You're argument is pretty much backwards since what you are against (abortion) is slightly lowering world populations, and what you're suggesting is better (people never having abortions) would cause even more overcrowding, crime, pollution and unhappiness than the world already has.
There's a difference between believing that a woman has a right to choose abortion and believing all unborn babies should die and that no one should have babies.