Cynics might well suggest that last night’s global warming “talkathon” by Senate Democrats from deep-blue states provided enough hot air to heat up the atmosphere. But such cynicism would miss the deeper significance of a political maneuver that was difficult to rationalize, even by Washington standards. Led by Sen. Brian Schatz of Hawaii, the talkathon featured an all-night procession of Democratic senators pouring forth global warming alarmism, derision for global warming “deniers” and strident demands for “action.” Notably absent from the proceedings were Democrats seeking re-election in November from red states — Mary Landrieu of Louisiana, Mark Pryor of Arkansas and Kay Hagan of North Carolina.