...e.g.when TEOTWAWKI, water wars and Mad Max style Peak Oil scenarios are conjured up (yet again) to "hack the Constitution"...
If the effect of unaddressed climate change is the functional equivalent of terrorist attacks ... does the Executive Branch ... act unilaterally ... irrespective of ... Congress?
comes from Friedrich August von Hayek, The Road to Serfdom (1944), Definitive Edition (2007), introduction by Bruce Caldwell, p. 31-32:
[V]ery much a part of his underlying motivation in writing the book, is Hayek's warning concerning the dangers that times of war pose for established civil societies—for it is during such times when hard-won civil liberties are most likely to be all-too-easily given up. Even more troubling, politicians instinctively recognize the seductive power of war. Times of national emergency permit the invocation of a common cause and a common purpose. War enables leaders to ask for sacrifices. This is true for real war, but because of its ability to unify disparate groups, savvy politicians from all parties find it
effective to invoke war metaphors in a host of contexts. The war on drugs, the war on poverty, and the war on terror are but three examples from recent times. What makes these examples even more worrisome than true wars is that none has a logical endpoint; each may be invoked forever.