They couldn’t take the heat and humidity?
I know how they felt...
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?
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..
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.
Was it that they did not go to the warm tropical locations, or they did not find them there.
Go drop a carcass in a jungle, then go back in a year and see whats left. Nothing remains in those places for long.
When global warming reaches 1112 F, I’ll get on board.
Dinosaurs are big lizards
Lizards are cold blooded and can’t self regulate body temp
Big critters produce more internal heat than small critters
Likelihood: in overall hotter world temps tropical regions were too hot for large cold blooded dinosaurs to fare well so the stayed in climate areas where they were more comfortable.
They probably regulated away all freon and substitutes for use in air conditioners which would have otherwise allowed them to operate in those environments
Seriously? The dinosaurs didnt populate the tropics because of CO2? What a joke. I guess when your job is to sell Globull warming, EVERYTHING is caused by Globull warming.
Here’s my theory.....they were in the tropics all along but we assumed our inability to find their bones indicated that they weren’t.
The environment in the tropics combined with the insects and animals makes the preservation of large carcasses very rare.
No giant dinos during the Triassic.
Took ‘em a while to develop 35SPF sun tan protection?