Investor’s Business Daily: Hot air and high-minded speeches might be the most obvious emissions from the Copenhagen climate talks, skeptics say. But behind the scenes Russia will play an old card from communism’s fall that could tip the odds even higher against ever meeting the summit’s goals. Russia’s greenhouse gas emissions plunged in the 1990s as its economy collapsed. Moscow now sits on a potential treasure trove of unused carbon emission permits it could sell to other countries. Those permits …