Re: global warming

"kim" <kim-moffat@xxxxxxxxxxxxx> wrote in
news:1127732462.280790.66220@xxxxxxxxxxxxxxxxxxxxxxxxxxxx:

> there are many theors about global warming but one thing is for
> certain. we need to cut down on the toxic emisions we produce
> especialy co2, and we need to stop cutting down the trees which
> help us change co2 into oxygen by photosinthisis
>

Eh.

Carbon dioxide comprises only about 0.03% of the atmosphere, and an
increase of 10% adds not much at all. Not much at all when you look
at another greenhouse gas, water vapor, which is generally 4-5% of
the atmosphere, fluctuates on a seasonal and daily basis and nobody
is worried about. As far as trees are concerned, only about 20% of
photosynthesis occurs on land, the ocean is a much more important
site for photosynthesis.

Sean

.

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