Originally Posted by
invisiblehand
But in reference to the question, there is a cost/benefit to this.
Agreed. But unlike many other challenges faced by our species, this one has long-term potential costs that are very hard to predict accurately. There is asymmetry in the risks and benefits. In my view, this warrants taking somewhat more of a current economic hit for a (very likely, yet not guaranteed) future pay-off.
That's one reason I ride a bike to work.

Steve