Led by Congressman Pig Virus.

Via National Journal:

Democrats are lining up to defend Secretary of State John Kerry’s claim that climate change is a threat to national security in the face of conservative attacks.

Sen. Sheldon Whitehouse of Rhode Island and Rep. Henry Waxman of California, two self-described climate hawks, sent a letter Thursday to Sen. John McCain, R-Ariz., and former House Speaker Newt Gingrich berating them for criticism they leveled at the secretary of State for his remarks earlier this week.

Over the weekend, Kerry delivered a speech in Jakarta, Indonesia, in which he said climate change was “perhaps the world’s most fearsome weapon of mass destruction.” […]

In their letter, Waxman and Whitehouse express disappointment with conservative reaction to Kerry’s remarks. They call McCain’s line of attack “inaccurate” and “uninformed,” and say that some experts believe the Syrian conflict could have its underpinnings in climate change.