Dave wrote:

And to add to that, what about the deforestation of this world? Isn't it
that trees remove carbon dioxide from the the atmosphere and turn it
into oxygen. That was what I was taught in school.

Its not as true as they would have you believe... the large forests are
mostly balanced ecosystems, so they neither contribute or take away, the
flora produces O2, the decaying vegetation and fauna however consume it.

What they are however is vast stores of carbon. The real problem comes
when you cut em down and burn them, that releases it.

A good proportion of the O2 is produced by algae.


--
Cheers,

John.

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