While I was reading this article, I was redirected to a spurious "Update Adobe Flash" page.
I went back, got a "Your AntiVirus is out of date" ad next.
hmm, who runs the ads on WordPress.com? Would that be Oracle's ad network?
Ice
41–50 of 57 posts
Re: Ice
#42The author seems to think we are "safe" from impact events, but that seems awfully glib and based more on pop culture takes like movies than facts. Our track record for noticing near Earth objects is pretty poor and largely due to amateur astronomers. I don't think there is any consensus on what sort of space mission we could mount to divert one either. We are a long way from "planetary defenses have never been stron…
Your right, a lot of the speculation in the article uses unjustified assumptions to move the reader on to the final point. When a sensible analysis would probably categorize a impact or air burst similar to the Tunguska event as one of the likeliest, if not the likeliest, cause.
Re: Ice
#43If you like this article, checkout this feature on The Scablands in ArsTechnica from a few years ago, a fun read: https://arstechnica.com/science/2014/10/the-scablands-a-scar...
Re: Ice
#44If you like this article, checkout this feature on The Scablands in ArsTechnica from a few years ago, a fun read: https://arstechnica.com/science/2014/10/the-scablands-a-scar...
Note for everyone else who, like me, isn't used to using this website:
There is a page switcher at the bottom of the article where you need to manually go to the next page to read more.
Re: Ice
#45While I was reading this article, I was redirected to a spurious "Update Adobe Flash" page.
I see people post about ads and I always wonder why it isn't common to consider ad blockers as the first line of defense against malware? Unlike antivirus they also actually make your system faster, since you don't have to use bandwidth & cpu downloading & running ads.
You could selectively disable blocking of ads from networks you trust, or on sites you trust, if you want to see ads/support sites that don't have other monetization.
Re: Ice
#46https://www.scientificamerican.com/article/no-there-wasnt-an... should accompany this. The whole younger Dryas advanced civilization think could have been avoided entirely and the point about ice melt rates would have been fine.
That SA article has been overtaken by events. We still don't have any evidence of early, drowned civilizations, but the comet strike now seems to be responsible for extinctions in both South America and Africa. As an aside, you don't need a crater. Multiple airbursts over a wide area, Tunguska style, provide plenty of devastation. You might be able to believe in mass extinctions caused by newly arrived humans in Sout…
I've seen you post before on this. The whole catastrophist label seems overly broad, and some parts are reasonable while other parts are less so.
How advanced do you think this civilization was? Do you think it was the Clovis people?
I think the megafauna extinction as support for a catastrophic event is very poor. You see multiple waves of megafauna extinctions, each preceded by human introduction. Places without human presence had megafauna into the late 20th century. I'm not saying it didn't happen, but I'm saying it's unconvincing. And air bursts of that magnitude and coverage don't square with fossil or sediments.
But ... impacts aren't required for this. Maybe there was a culture that was relatively advanced. The Mississippian structures were huge. Incan and Mayan cultures were advanced based on contemporary cultures. Anyway, I'm curious what you believe is the case.
Re: Ice
#47If you want to learn more about the Missoula floods https://www.youtube.com/watch?v=wJo8m4oKc6k https://www.youtube.com/watch?v=i1BFb_uYlFQ https://www.youtube.com/watch?v=w7eqBtc2tv0 And then you can come to your own conclusions on whether or not you believe in the meteor impact theory, rapid destabilization theory, etc. But, I have a feeling the solution is simpler. It only takes one tiny stream of water to make it…
Another good video: https://youtu.be/YWZgfPGtQEs
wtf, people. thanks for the deep rabbit hole i've been stuck in learning about the geology of the region. :)
Re: Ice
#48This essay mentions the Younger Dryas but what it doesn't mention is that the Younger Dryas was a sudden return to glacial temperatures after the earth had already warmed up at the end of the last glacial period. The magnitude of these swings in both directions are absolutely enormous and occur at much too rapid a speed to be attributable to trace greenhouse gas concentrations. Something else must have caused those s…
> By the way the Antarctic ice sheet is currently at median levels (based on 1981-2010 baseline)
Careful: ice sheet != sea ice. The formation of sea ice is strongly dependant upon underlying sea temperature & exposure to daytime sun & nightime radiational cooling. Ice sheets form on land due to snowfall. Most of the Antarctic sea-ice disappears every year in the southern hemisphere summer.
Re: Ice
#49This essay mentions the Younger Dryas but what it doesn't mention is that the Younger Dryas was a sudden return to glacial temperatures after the earth had already warmed up at the end of the last glacial period. The magnitude of these swings in both directions are absolutely enormous and occur at much too rapid a speed to be attributable to trace greenhouse gas concentrations. Something else must have caused those s…
Why is it that the Antarctic ice sheet is currently at median levels while Arctic ice pack has changed so dramatically?
The southern hemisphere has not seen the same amount of polar "amplification" as the northern (b/c more land in the northern hemisphere). But still an active topic of research [0]
[0] https://www.climate.gov/news-features/understanding-climate/...
Re: Ice
#50Earlier quoted context omitted.
That SA article has been overtaken by events. We still don't have any evidence of early, drowned civilizations, but the comet strike now seems to be responsible for extinctions in both South America and Africa. As an aside, you don't need a crater. Multiple airbursts over a wide area, Tunguska style, provide plenty of devastation. You might be able to believe in mass extinctions caused by newly arrived humans in Sout…
I've seen you post before on this. The whole catastrophist label seems overly broad, and some parts are reasonable while other parts are less so. How advanced do you think this civilization was? Do you think it was the Clovis people? I think the megafauna extinction as support for a catastrophic event is very poor. You see multiple waves of megafauna extinctions, each preceded by human introduction. Places without hu…
This has all already been responded to.
Except, the Inka, Mayan, Missouri and Amazon civilizations are 10+ millennia too late to be relevant, but in that they were unknown to Europeans until 500, 50, or 15 years ago.
I don't know anything about a pre-6000 BP civilization except that it is possible in principle, and evidence might be underwater. I would look first off the west coast of India, south of Pakistan and near old Harappan cities, where buildings are known of, under 60 ft of water. They snag fishermen's nets.