better for who, who cares about a pristine enviroment if you can't be there to enjoy it? Lets just kill all the stupid people instead.
Oh wait that's been done before, no wonder why history repeats itself.
Positive eugenics is aimed to encourage reproduction among the genetically advantaged. Possible approaches include financial and political stimuli, targeted demographic analyses, in vitro fertilization, egg transplants, and cloning.
Negative eugenics is aimed at lowering fertility among the genetically disadvantaged. This includes abortions, sterilization, and other methods of family planning.
Both positive and negative eugenics can be coercive. Abortion by "fit" women was illegal in Nazi Germany and in the Soviet Union during Stalin's reign.
surely in America we are more civilized than nazi's right?
http://www.sntp.net/eugenics/eugenics_america.htm
Its going to take an ice age or something to put natural selection back into place.