Revkin talks about the differences between the two initiatives:
The 1993 tax was pursued mainly as a source of revenue to cut the deficit, not a means of reducing American dependence on foreign oil and cutting risks of dangerous climate change. But there is one similarity. Democrats, particularly from coal states, helped set the stage for the failure of the 1993 tax, according to various experts, and according to Mr. Clinton. He touched on this in the interview. Democrats from states that produce or depend on fossil fuels have been slow to buy into the climate bill. Check out the article.