Posted on 11/11/2005 10:12:25 AM PST by sandbar
Study: Past global warming altered forests GAINESVILLE, Fla., Nov. 10 (UPI) -- The concept of Pennsylvania palmettos and magnolias in Minnesota may not be too far-fetched in view of research by a University of Florida paleontologist.
The research by vertebrate paleontologist Jonathan Bloch and colleagues suggests land plants changed drastically during a period of sudden global warming 55 million years ago.
"It indicates that should we have a period of rapid global warming on that scale today, we might expect very dramatic changes to the biota of the planet, not just the mammals and other vertebrates, but forests also completely changing," said Bloch.
Global warming allowed mammals to emigrate across northern land bridges, marking the first appearance of perissodactlys in the form of the earliest known horse; artiodactyls, a group of even-toed ungulates that includes pigs, camels and hippos; as well as modern primates, he said.
The theory is supported by excavations in northwestern Wyoming by team leader Scott Wing, a paleontologist at the Smithsonian Institution. They uncovered tropical fossil leaves and pollen alongside fossilized mammals in rocks that were deposited during that turbulent geologic interval.
The research is detailed in the current issue of the journal Science.
Wow, did we even have cars back then? ;)
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Thanks for the Breaking News.
Wake me when it is conclusive.
Ice ages have occurred suddenly as well or so I have heard.
No living creature can say for certain, however
I blame Bush...
It makes sense. Every time the earth comes out of an ice age, there's a period of global warming. We came out of an ice age about 20,000 years ago, which is nothing on the scale of geologic time. Things will heat up for another 30,000-40,000 years before it peaks and starts to go the other way.
The whole notion of cars causing global warming is total bunk. It just kills me how many reputable science publications are buying into the global warming hoax. I can't even read Discover magazine anymore. Every damn article injects global warming somewhere. Their letters section always has people complaining about their buying into junk science. They always follow up with a disclaimer by the editor saying that global warming has a lot of proof on either side and that it's being debated in the scientific community. There ain't nothing to debate, it's a big fat scam.
No, it was caused by wooly mammoths burping and farting.
In central Ohio there are peat bogs whose decaying vegetation keep the contained water very warm. Growing on the surface of these bogs are tropical plants.
bump
So global warming causes the ice to melt which raises the sea level and floods all of coastal areas, except between Alaska and Siberia, where the melting ice causes the sea level to drop, creating land bridges where the water is now hundreds of feet deep.
Now I understand.
That durn Kinnewick man! He's to blame.
WOWSERS!!!! I didn't know that the origins of SUV's dated back 55 million years.
55 million years ago...not exactly the industrial revolution, eh ?
"sudden global warming 55 million years ago. "
===
They can hardly blame that on modern technology used by humans today.
They can hardly blame that on modern technology used by humans today.That's very true. Speaking of which...
To all -- please ping me to other topics which are appropriate for the GGG list. Thanks.William the Conqueror's Global WarmingLloyd Keigwin, a researcher from the Woods Hole Oceanographic Institution... concluded that although sea surface temperature (SST) in the northern Saragasso Sea is now about 1 degree centigrade warmer than 400 years ago during the Little Ice Age, it is about 1 degree cooler than about 1,000 years ago during the Medieval Warm Period. Keigwin's conclusions are based on his study of sediment accumulation in the Saragasso Sea... Eleventh century society burned no gasoline. There were no electric power plants to burn coal. No chemical plants emitted volatile organic compounds (VOCs). Airplanes, reputed to emit as much of the greenhouse gases as the eighth most polluting nation, were still 900 years away from being invented.
by Steven J. Milloy
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I don't care if it global warming makes it a degree or two hotter in Texas--as long as it's "dry" heat.
My son lives in Las Vegas and tells me when it gets around 110-120 it isn't so bad because it's the fabled 'dry' heat.
My oven has 'dry' heat too but I wouldn't want to live there at 120 degrees.
Of course they did. They have been evolving for billions of years, just like everything else.
You didn't think they just suddenly appeared, as a creation by intelligent design, did you?
They can be traced back to rotifera, which then formed expeditious groups, much along the line of slime molds or groups of amoeba.
The final step was when they became capable of eating naughas, and excreting their hides as seat covers that they really came into their own.
I thought everyone knew Detroit was a "secret" breeding farm, with the 'factories' as a half hearted front....
Wow, uh dah, would that still be Bush's fault???
ROFLMAO!!!!!
BTW, It's going to take me an hour to clean the coffee off my monitor that I spit from laughing.
"Global warming allowed mammals to emigrate across northern land bridges..."
I'm confused, I thought GW melted the polar ice caps flooding the land bridges?
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