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To: Jon Khymn who wrote (643)7/28/2003 11:56:52 PM
From: Chris McConnel  Read Replies (1) of 795
 
You are right, but where do you get a "few hundred years" figure?

Interestingly, one possible source is the potential energy stored in coal. There are existing industrial processes that combine coal and steam to make hydrogen and, inevitably, carbon dioxide. The process does not involve burning the coal. In principle, the carbon dioxide could be separated and stored (“sequestered” is the current buzzword). Where could it be stored? That little problem has not been solved yet. And in any case the coal will eventually run out. We’re trying to think long-term here.
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