 The proposed markers for the impact event are claimed to have contributed to the transition from Clovis culture to subsequent patterns.This supposed event is claimed to have triggered extensive biomass burning, a brief impact winter, and an abrupt climate change.The original hypotheses about a comet impact that had a widespread effect on human populations can be attributed to Edmond Halley, who in 1694 suggested that a worldwide flood had been the result of a near-miss by a comet.