"Jim Webster" wrote in message
...



Whilst there probably are people in global warming denial, there are others
who are perfectly willing to accept that global warming is happening, but
doubt just how much impact humanity is having on the process.


Carbon dioxide is a greenhouse gas. The earth tends to be warmer
when there are high concentrations of it in the atmosphere and cooler
when there is less. I hope everybody agrees on this

And as to how much impact we are having on the warming, well
is it not more than a little suspicious that the warming trend has been
accelerating at *exactly* the same time as global emissions of
carbon dioxide have been increasing sharply? i.e. the last few decades
of the 20th century.

Even if the warming is part or wholly natural we still risk adding to it
if we continue to pump more CO2 into the atmosphere.

Besides in the not too distant future the fossil fuels are going to run out
anyway so it's a good idea to investigate alternatives now.

So there you go, two very good reasons to reduce carbon emissions
even if the current warming trend is purely natural.

Col
--
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