Posted by Rob Thorton:

US resources applied to counter climate change are different from applying US resources to countering the effects of climate change.
Fair enough, but applying resources to counter climate change is generally for diplomatic, informational, and economic instruments of power. The relevance of climate change to the military instrument of national power is in the conflicts that will be triggered or aggravated by the effects of climate change.

What conflicts will be initiated or shaped by climate change?

Aside from the
would you prefer thick crainally ridged neolithic skin encased protein rejecting protoplasm?
remark (we prefer the term "knuckle-dragger"), Selil pretty much nailed the concepts of the relevance of climate change.

The military can't afford to go around crying "Make it didn't happen!" like a 3 year old or the main stream news, the military has a duty to deal with the effects and anticipate future impact.