catastrophism

Etymology
From,.

Noun

 * 1)  The doctrine that sudden catastrophes, rather than continuous change, cause the main features of the Earth's crust.
 * 2)  The doctrine that, in addition to the more gradual effects of evolution, huge catastrophic events shape the earth's flora and fauna by causing major die-offs which make way for the emergence of new organisms.
 * 3) The practice or tendency of catastrophizing, regarding bad things as catastrophic.
 * 1) The practice or tendency of catastrophizing, regarding bad things as catastrophic.