Palin vs. McCain on global warming

The Washington Post has a very good article about the difference in Palin's and McCain's stated positions on global warming.  McCain professes to believe that humans are driving global warming.  The Post points out, though:

 "...in selecting Palin and deciding to place her in charge of energy affairs should they win the White House, he has a running mate who has resisted this key tenet of his candidacy."

If John McCain truly believes that global warming is human-driven, then he knows that it is a critical issue.  Why on earth would he put a known dissenter to his alleged point of view in charge of energy affairs?  That would be the absolute height of illogical irresponsibility.

The truth is, nobody knows what John McCain really thinks because his positions change from day to day and from audience to audience.   In the blizzard of pandering and lies that is the McCain campaign, it is impossible to determine what, if anything, John McCain stands for.