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Politics : View from the Center and Left -- Ignore unavailable to you. Want to Upgrade?

To: Lane3 who wrote (62918)5/2/2008 12:19:04 PM
From: TimF  Read Replies (1) | Respond to of 541941
 
I suppose sustainable is a relative term.

Does it have to last for 50 years, 100 years, 500 years, 10000 years, or until the sun goes red giant, in order to be sustainable?



To: Lane3 who wrote (62918)5/2/2008 2:12:58 PM
From: Cogito  Read Replies (3) | Respond to of 541941
 
>>Coal is sustainable. We have coal stores out the wazoo.<<

Karen -

Our supply is finite. Thus, coal is not sustainable.

Estimates are that our coal supply could last over one hundred years. That's not really a very long time. My grandmother lived that long.

- Allen


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