Mike Carrell wrote:
>
> Methinks Paul is still missing the point. Robin correctly points out that
> the sun's daily input of energy to the earth is 10,000 times what man's use
> is. Our direct use of energy is trivial. It is the blocking of radiant heat
> escaping the earth by the ***accumulated*** greenhouse gases that is our
> contribution to global warming. You burn a tankful of gasoline and its
> direct contribution to warming is un-measurable, but the effect of the CO2
> produced will continue for perhaps thousands of years, each day contributing
> to the blockage of cooling of the earth by radiation.
Heat production may be trivial today, but that may change in the future.
After all humanity now produces 10,000 times more heat than it did centuries
ago. Is it not possible that in the centuries to come, humanity might be
producing 10,000 times more heat than today?
Harry
