In response to the Department of Defense having recently unveiled a comprehensive plan for how the U.S. Military will address climate change, deniers are insisting (as you might expect) that there are more important things for the DoD to worry about, like ISIS and ebola. The DoD, on the other hand, says climate change will "affect [its] ability to defend the Nation and poses immediate risks to U.S. national security."
The report doesn't actually say much that's new (in the sense that climate change has been and remains a threat to U.S. security that defense strategists take very seriously). Some deniers have used the lack of "new material" as an opportunity to point to a similar report from 2004 and argue that anticipated security threats from a decade ago haven't come true. However, the projection that climate change would become a conflict catalyst has come true! If anything, the fact that security experts have been concerned about climate risks for over a decade should raise a red flag for those who have any doubt.
Surprisingly, Fox News covers the story fairly straight. It offers only one denier quote from Inhofe (R-OK) who says right on cue that, "there are other, legitimate threats in the world." Because, apparently, we need to achieve world peace and the end of all diseases before we can finally get around to solving climate change.