The Megafauna die-off event

One of the authors that wrote a paper debunking the Younger Dryas Boundary event has now switched attention to the Australian megafauna extinctions – see http://archaeologynewsnetwork.blogspot.com/2012/11/hunting-or-climate-ch…. This time, it is not the Younger Dryas he takes aim at but the period around 40,000 years ago. This is not sharply defined as noted in earlier posts but basically he is talking about mass die-offs, once again, in various parts of the world, but homing in on Australia in particular. Archaeologists there are highly sceptical of these animals disappearing as a result of human hunting activity – but geologists, palaeontologists, palaeoecologists, and computer simulations, let's not forget them, are ranged against them. These people seem to be desperate to blame humans for the disappearance – anything but face the possibility of catastrophism. By only focussing on Australia they are able to ignore the mass die-offs in other parts of the world – at the same point in time. Apparently, the line is that absence of evidence is really proof of the overkill hypothesis.