Defense One: John Kerry gave a speech in Jakarta, Indonesia, last weekend where he referred to climate change as “perhaps the world’s most fearsome weapon of mass destruction.” Defense Secretary Chuck Hagel and Navy Admiral Samuel Locklear, the head of U.S. Pacific Command, have made similar statements. Yet the most recent research shows that the human output of carbon dioxide, a leading cause of climate change, is only getting worse, increasing the probability that mean global temperatures will rise by the end…