Re: How many trees do we actually need?
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HMK,
I could be wrong, but its my understanding that sea algae produce somewhere between 70 and 80 % of the world's oxygen. Now, I don't think that means we could go around cutting every tree with no consequence, but I think the oxygen
production of forests is probably overblown.
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Hardly overblown, and an obvious cause for concern. Using your numbers, 20-30% of oxygen production is a LOT. Consider the size of the biosphere and what a 0.0001% difference might do in sheer volume of oxygen. Draw your own conclusions.
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