I believe that's what OP was referring to, considering his link. No one was presuming environment meant the conditions of the natural world. The point stands.

I believe that's what OP was referring to, considering his link. No one was presuming environment meant the conditions of the natural world. The point stands. How many people consciously make an effort to prevent cancer in every aspect possible? On a personal level as much as a societal level, we're doing little to address the preventable causes of cancer. Why are so many people making so many "bad life choices"?