George Howard is on best behaviour at http://cosmictusk.com/live-link-comet-and-asteroid-impacts-and-human-soc... ... as he provides a link to the full pdf of a very expensive book to buy on Amazon. Go to link above and click on Han Rickman and you will get a list of publications - the pdf is three or so short of the top. The book is by Peter Bobrowsky and Han Rickman, Comet/Asteroid Impact and Human Society, and a must to add to your computer saving library.
Catastrophism ... www.pibburns.com/catastro.html (Philip Burns)
Cosmopier ... http://sites.google.com/site/cosmopier/ .. which has some interesting ideas on End of Pleistocene and environmental change
www.catastrophism.com ... Ian Tresman's site. Lots to interest all and a high spec CD to boot (also available from the SIS Book Service)
Impact Earth ... www.purdue.edu/ImpactEarth (Pierazzo and Collins)
Cosmochemistry ... www.higp.hawaii.edu/cosmoeye (space science)
see also www.psrd.hawaii.edu
Two posts at Cosmic Tusk turn the Bos paper upside down - basically it argues against a 2007 paper by Firestone et al but ignores several papers between then and now, reflecting five years more research on the Younger Dryas boundary event. It is now looking very likely that something big did indeed happen around that time and it had a cosmic dimension - see http://cosmictusk.com/but-le-bos-mais-pourquoi-pas-la-france/ and http://cosmictusk.com/steamed-ted-bunch-from-the-heart-on-boslough-and-s...
At http://phys.org/print280132683.html ... and again at http://phys.org/print280123324.html ... we have further on the Russian meteor. Phys Org are making a meal of it today and we learn that NASA say they have detected 9500 celestial objects of various sizes that have a trajectory that cross the path of the Earth - but they also think the real numbers are ten times this (90,000 or so).
The space rock 2012DA14 has passed by without anything out of the ordinary happening -safe to look out of the window. However, it wasn't for the Russian population of a town about 100 miles east of Moscow. At http://news.yahoo.com/video/russian-meteorite-caught-tape-injuries-07182... ... there is a video of a fireball that struck central Russia in which 500 people are said to have been injured, mainly as a result of shattered windows and flying glass. The people of Chelyabinsk were treated first to a loud explosion above, a bright flash of light, and the shock-wave.
Mark Boslough, sometimes known as the Bos, claimed comets make up only one per cent of the population of earth crossing objects - and exist only for short periods of time (see http://cosmictusk.com/william-napier-to-mark-boslough/). This view echoes the mainstream consensus that comets are little more than dirty snowballs and disappear as quickly as they appear - and the Clube and Napier hypothesis has never been accepted. In fact, there is a fair bit of virulent objection to the hypothesis - not wanted. Opens too many cans of worms.
An interesting update on Claude Schaeffer can be found at https://lirias.kuleuven.be/bitstream/123456789/373607/1/SRL2013-Jusseret... and the authors have even consulted the Velikovsky Archives. It seems the ideas of Schaeffer may in part have been inspired by Arthur Evans, who excavated at Knossos and interpreted various destruction layers there to the effects of earthquakes.
George Howard has responded to the Mark Boslough press release - see posting a couple of days ago (Feb 2nd), and more or less enscapulates the issue by focussing on the fuss and bubbles when the PR people pushed like mad to grab peoples attention and assure them the YDB event debate was over. Kaput. Finished. Looks like it might be about to rise from the dead. Go to http://cosmictusk.com/holy-hagiography-over-the-top-press-joneses-mark-b...
C Warren Hunt, of http://eearthk.com fame, has a book that you can buy at www.polarpublishing.com, 'The Environment of Violence: readings of cataclysms cast in stone' Calgary, 1989, and in the section on drumlins he has some interesting ideas. He describes them as mounds of fluvial deposits, sand and gravel and stones, sometimes stratified and sorted, and in the consensus geological view, moulded by glacial ice.
Scientists from Royal Holloway College (part of London University) in association with Sandia National Laboratory in the US, and 13 other universities in N America and Europe are down as contributing to the conclusions, are all unanimous in saying a large impact or airbursting comet or asteroid is out of context in explaining the sudden dip in climate at the Younger Dryas boundary and even less in respect of explaining the disappearance of Clovis points and their replacement by the similar Folsom points (which appear derivative).