Catastrophism news

K/T boundary event again

This subject was sent in by several people including Jovan and William but Robert has gone straight to the source of the sauce in an article at www.theatlantic.com/magazine/archive/2018/09/dinosaur-extinction-debate/... ... the controversy over the K/T boundary event in which both sides have had an acrimonious relationship since the Alvarez theory was adopted as mainstream science. That is the gist of the article - but is there a political angle the magazine is trying to push? As I don't read The Atlantic I have no idea.

Facts and Fictions

At https://phys.org/print452150037.html ... a carbon leak may have warmed the planet beginning in around 11,000 years ago, encouraging human civilisation to develop. The oceans are the planet's liggest depository of atmospheric carbon dioxide - so how do you get to releases lots of co2 and warm the planet (assuming co2 actually has a warming effect in the first instance). Well, according to this study, activity in the Southern Ocean was responsible - pulling out of the hat a hoary old chestnut in respect of the ocean current circulation.

Revelations

Sent in by William. Interesting take on Revelations, the last book of the Bible. Trumpet judgement 1 includes a meteor or bolide, no 2 refers to a large meteor, no 3 a huge bolide, no 4 astral observation, and no 7 a great hail of stones. These ideas are expressed in 'Revelation: What Did John Really See?' by Phillip J Silvia ISBN 9780615866055 and available via www.biblicalresearchbulletin.com ... and presumably via online bookshops.

Antique CAGW

At https://malagabay.wordpress.com/2018/06/22/late-paleocene-thermal-maximum/ ... here we have a catastrophic event that has been apprehended by climate scientists in order to create a scare story over CAGW. The late Paleocene/Eocene boundary event is supposed to be a classic case of the earth over heating. As you might expect the CAGW adherents have proposed there wasa lethal injection of carbon dioxide into the atmosphere in order to account for the rise in temperatures.

Genetic Bottleneck

This one was sent in by Jovan - go to www.livescience.com/62754-warring-clans-caused-population-bottleneck.html .... males genes across Asia, Europe and Africa seem to suggest something peculiar happened between 5000 and 7000 years ago (or 3000-5000BC) in which women were left numbering 17 to 1. Obviously, this can't be strictly true unless it was a mutation of some kind (lucky fellas if that was the case). The idea of a male bottleneck at this point in time was first raised by researchers in 2015 and since then scientists have been trying to make sense of it all.

Warmish Greenland

At www.sciencedaily.com/releases/2018/06/180604151150.htm ... the preservation of flies in mud on Greenland show that two interglacial periods witnessed a warming of the climate close to the modern ice sheet. Temperatures were somewhat warmer than today - and this is projected to have been significant. Lake muds that survived the last Ice Age (its entirety) has the remains of common flies.

Jurassic Sea Flood

At https://phys.org/print447399984.html ... dinosaur age marine fossils have been found in the middle of Australia - hundreds of miles from the sea. They are micro-organisms known as dinoflagellates which produce red tides (algal blooms). It is thought Australia was still attached to Antarctica at the time, which adds to the mystery. Interestingly, in the succeeding Cretaceous period there is evidence of a vast inland sea in Australia - but the new evidence comes from the Jurassic.

K/T boundary event

Sent in by Jovan (as the earlier link to Sky and Telescope). Global warming caused by co2 levels reaching 2300 parts per million. Currently we have just over 400 parts per million and alarmists are feeling very wobbly. WEhat researchers have found is that after the K/T boundary event temperatures shot up - in North Africa. One might suppose an asteroid strike would cause global cooling due to lots debris in the atmosphere - and the researchers acknowledge this. They claim it was followed by a period of global warming which lasted for 100,000 years.

supernova and life on earth

At https://phys.org/print445854431.html ... could recent supernova explosions be responsible for mass extinctions - or some mass extinction events to be more precise. The story is in NASAs Astrobiology Magazine at www.astrobio.net ... In particular two lesser known extinction events (or part extinction events as opposed to globally significant events), at 2.5 and 8 million years ago. The idea being put out to fellow scientists is that supernova explosions may have depleted Earth's ozone layer. The one at 2.5 million years ago coincided with the end of the Pliocene era.