"...all branches of the military are viewing climate change as a national security issue."  Yep - when the climate goes south and transportation networks and food production are affected the world political situation will become even more unstable.  Low lying countries and islands in the Pacific and Asia are already beginning to flood and vast areas will become unproductive and unlivable.  Personally - I'm old and have lived a decent life - just a few more years left.  I pity the younger generations who will face the result of our ignorance.  I think we have passed the tipping point - disastrous climate change is inevitable.  YMMV.