Chris,

If we mostly talk about our lifestyle choices to diminish our contribution
to overconsumption, it's because that's where we have the most choices to
make.  Also, coming mostly from wealthy countries with low growth rates,
that's what we can point to to address whether we are as much a part of the
problem as others around us.  Yes, we can teach what we understand to be
true about overpopulation, and we can push for government policies that can
help reduce the global population growth rate (such as funding family
planning services in poor countries where such services are not accessible
to most people).  However, the only lifestyle choice we can make to reduce
our personal contributions to overpopulation is not to breed too much, and
I'm sure most of us are aware of that option.

I'm certain just about everyone here knows that the total human impact on
the environment is a product of population size and per-capita environmental
impact.  (How to measure "impact" is probably something we'd argue about.)

Jim Crants

On Thu, Sep 10, 2009 at 5:50 PM, Chris_Hamilton <chami...@uwsp.edu> wrote:

> I'm not sure being ecologists makes any of us that much more grounded than
> the average person.  Look at all of these posts about lifestyle choices to
> trim our footprint.  Only two even refer to the number of humans leaving a
> footprint as a potential problem.
>



-- 
James Crants, PhD
Scientist, University of Minnesota
Agronomy and Plant Genetics

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