I took a environmental ethics course a little while ago and this subject was a hot topic because it also implied this need to "mass produce" if you will, the human race. Is it neccessary in today's age to have 4-5 kids or +? But, at the same time, you would be limiting one's right to have kids (look at China for example) and then apply the argument to 3rd world countries where the mindset is still to have many kids b/c of increased labor, lack of birth control or knowledge of control, etc.
Also, here in Orlando, the city is discussing light rail as another form of transportation but too many people don't want it. I have the feeling that they are too attached to driving and are not willing to compromise, as well as on other things, like what products they use and how they dispose of them.There are so many answers to the problems but no one wants to compromise,even when the compromise is as simple as recycling or riding a bike 5 miles to work.
As what John Denver said, I may not be able to save the world, but I can help as much as I can in my own way!