Posted on 06/20/2015 1:31:56 PM PDT by ETL
New research has revealed why it took more than 30 million years for large Triassic dinosaurs to populate the tropics after they first appeared on Earth, ending a mystery that has kept researchers baffled for decades. Using new geological evidence culled from Ghost Ranch, N.M., researchers from the University of Southampton in the U.K. have found that an extremely unpredictable hot and arid climate due to elevated carbon dioxide levels (four to six times of what they are today) kept large herbivorous dinos at bay until after 200 million years ago.
(Excerpt) Read more at foxnews.com ...
They couldn’t take the heat and humidity?
I know how they felt...
dinosaur farts were to blame. all that methane, no doubt. :p
More liberal B.S.
They was out cattin' around!
re: “. . .an extremely unpredictable hot and arid climate due to elevated carbon dioxide levels (four to six times of what they are today) kept large herbivorous dinos at bay until after 200 million years ago.”
So, I’m a bit confused. Global warming kept dinosaurs away, but, now I’m supposed to be against global warming so that, what - dinosaurs can make a come back?
Interesting preamble to the objective of the article - human extinction in 100-200 years due to AGW. We’re all gonna die. Eventually.
They should have taxed them.
That doesn't make any sense--elevated CO2 would've caused higher than normal growth rates for the plants they fed on--a large food supply.
And I suppose the ice ages where causes by lower CO2 levels?
Total nonsense. Variations in solar output cause climate change.
There is one major factor this article seems to ignore and one minor one they don’t fully explain. From roughly 300 million years ago to, interestingly enough, 200 million years ago, all the crustal plates, or continents if you will, were joined together in a single monster continent, Pangea. The interior of this continent was very arid and hot. The carbon sinks, mountains, vegetation and weather patterns of today, and the last 200 mya were not there. Yes, the minor point, global warming brought on by excess CO2 among other things, did make areas of the planet difficult to impossible for many life forms, however it also heated up the cold to temperate zones so life could continue to exist and evolve.
Telling part of the truth is part of the eco politicians stock and trade. By the way, this has been known for 20+ years.
SUn’s HOTer then earth HOTer...
SUn’s COOLER... then earth Cooler..
simple really..
There was a news story just a day or two saying that humans would be extinct in 100 years because of global warming.
I was thinking: Siberia? Northern Canada? These areas will totally and absolutely incapable of hosting any human settlements at all due to the extreme heat? Don't think so.
As John Maynard Keynes pointed out, "In the long run we're all dead."
Earth-> .
Impossible. CO2 is near saturation now with respect to its ability to absorb radiation. If it was 4 to 5 times higher, there would be little difference. Now if water vapor was higher, then you would be talking some real science. Obviously the sun was putting out more radiation and causing more water to evaporate.
LOL! That’s Ringo, isn’t it?
.. plus tilts in Earth's axis that occur in cycles.
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