"nuclear war" . . "completely unfounded" . "nuclear winter" . "aftermath of a nuclear war" . "nuclear twilight" . "in these 1980s models and books" . "Nuclear winter" . "Nuclear winter#Nuclear summer" . "modern appraisals of potential ozone layer issues" . "the ability to go from a beautiful blue planet to a red one" . "shaky assumptions used by nuclear winter models" . "radioactive ash has blocked out the sun" . "perturb the climate on their own" . "\\\"Twilight at Noon\\\"" . . "knowing what I know now" . "Nitrogen Oxides, Nuclear Weapon Testing" . . "Nuclear Winter" . . "obscures" . "coined the phrase \\\"nuclear winter" . . "debated" . "Cretaceous\u2013Paleogene firestorm debate" . . "promoting" . "\\\"apocalyptic\\\" 1-D computer model phase" . "dismiss the nuclear winter hypothesis" . "exaggerated concerns" . "effects" . . "\\\"TTAPS\\\"" . . "Nuclear winter" . . "nuclear-like winter" .