 But they write that the large Pt anomaly "hints for an extraterrestrial source of Pt".This interpretation fails to support the 2007 YDIH because it is much more likely that the Greenland Pt anomaly was caused by a small local iron meteorite fall without any widespread consequences.In 2016, a report on further analysis of Younger Dryas boundary sediments at nine sites found no evidence of an extraterrestrial impact at the Younger Dryas boundary.