EntityQ3032301· pop 15· linked from 236 articlesimpact winterSign in to savehypothesized extended period of worldwide cold weather due to the impact of a celestial body on the Earth's surfaceConnectionsextinction eventEntitycometEntitydinosaurEntityasteroidEntityphotosynthesisEntityatmosphere of EarthEntitymeteorEntityfinancial crisisEntityhazardEntitysupervolcanoEntitynear-Earth objectEntityfirestormEntityasteroid impact avoidanceEntityYoungest Toba eruptionEntitydepositionEntityEarthConceptSunConceptMoonConceptLondonCityNew York CityCityCategoriesClimate forcingCosmic doomsdayImpact eventsWinter