>> Of course they're different. Once you cut them, they start to die, and therefore decompose,
>> thus giving off CO2 rather than absorbing it.
They wouldn't start to die straight away, they wouldn't give off noticeable amounts of CO2 anyway, and they would still be net converters of CO2 to O2, and if that was the concern, why only take them away at night?
Last edited by: SteelSpark on Sat 5 Feb 11 at 10:42
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