Carbon-neutral Camelot?

Here's a cool angle that occurred to me last night. I wondered about the potential of our huge conservation land to make us "carbon-neutral". Now I am trying to find data to calculate that. http://en.wikipedia.org/wiki/Carbon_offset mentions a figure from a UN study: "...900 trees, enough to annually remove as much carbon dioxide as is annually generated by the fossil-fuel usage of an average United States resident".

Here's the numbers worked out it details:
http://fguardians.org/support_docs/document_carbon-calculation-methodology_2-07.pdf

Apparently mature trees do not sequester carbon. To really take carbon out of the atmosphere, you need growing trees. And secondly, you need a LOT of acreage of growing trees to offset typical carbon emissions! (And of course thirdly, Forest Guardians sounds like a great program to support!)

Comments

JohnDunk said…
So, you're suggesting that we cut down trees so we can get more young growing ones to absorb the carbon? Sounds good - and we can burn the ones we cut down in the CH fireplace!

Just Kidding! Just Kidding!
MP said…
Hi John,

I know you are kidding, but those are not the only choices. Perhaps there is significant value to be added by selectively cutting down old & decrepit trees that will make room for new ones. I believe this is done in most managed forests.

- manoj
Anonymous said…
What I wonder about is that all their calculations are based on turning non-forest area into forest area. As they say, mature forest are actually carbon nuetral. So why not cut down mature trees in their prime, and plant new ones? Why wait until the growth even slows down? Just chop them down after their peak growing years have past. As long as the wood is used to build something relatively permanent, you are trapping the carbon.

Brokk...
MP said…
Brokk,

Thanks for the comment. I am pretty sure the whole discipline of forest management tackles the very question you are raising. There are multiple factors at play here, such as wood yield, size of board and rate of carbon-trapping. You can probably work your forest to maximize the factor you want.

- manoj

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