… and dud media

the media haven't seen fit to hardly mention the latest paper on the Clovis comet hypothesis, assuming it is a dud call, but apparently students and geologists have shot the paper to the 'most read' item in the journal Geology – so the experts, and the future experts, are interested, and pricking up their ears – see http://cosmictusk.com/clovis-comet-paper-1-read-article-in-geology/ One of the features of the paper (you can download a pdf at Cosmic Tusk) is that there was a large peak in ammonium ions in ice cores at the beginning of the Younger Dryas which has been compared to a similar ammonium spike in 1908, the date of the Tunguska incident.