05-08-2008, 03:21 PM
We have many threads about the Global Warming issue, but there are none here that cover the "Good" things that come out of a warmer planet. So, on that note, I will begin this thread by showing that science is finally beginning to show that a warmer planet is better than a cooler one. Just this week I found the complete History Channel show entitled Little Ice Age: Big Chill, which clearly shows that a cooler planet has catestrophic results to humans.
If you will look at the following maps, which show the planet 18,000 thousand years ago, and also today, you can obtain a pretty clear idea as to what the planet looked like then.
![[Image: lastgla_mod.gif]](http://www.geocraft.com/WVFossils/PageMill_Images/lastgla_mod.gif)
![[Image: present_mod.gif]](http://www.geocraft.com/WVFossils/PageMill_Images/present_mod.gif)
Two things clearly show up here. first, during the ice age, much of the planet is covered in ice, and today it is not. And secondly, the percentage of extreme desert is far less today than 18,000 years BP. So, if one uses these two facts, it is easy to draw a logical conclusion that the colder the planet, the dryer it will be, because there will be so much of the water locked up in ice shelves. Consequently, more extreme deserts, and drier planet. This would naturally mean that the warmer theplanet, the wetter the planet, and the less extreme desert, correct? And we know that there have been several times, during this current interglacial, in which the Sahara Desert was far greener than today. If so, then we can assume that global warming will produce a greener Sahara.
So what is the evidence concerning this? Well look here at this latest scientific finding.
So, the point is: the warmer the planet, the wetter and greener the planet. makes logical sense to me. Why can genuises, such as Algore, see this as well?
If you will look at the following maps, which show the planet 18,000 thousand years ago, and also today, you can obtain a pretty clear idea as to what the planet looked like then.
![[Image: lastgla_mod.gif]](http://www.geocraft.com/WVFossils/PageMill_Images/lastgla_mod.gif)
![[Image: present_mod.gif]](http://www.geocraft.com/WVFossils/PageMill_Images/present_mod.gif)
Two things clearly show up here. first, during the ice age, much of the planet is covered in ice, and today it is not. And secondly, the percentage of extreme desert is far less today than 18,000 years BP. So, if one uses these two facts, it is easy to draw a logical conclusion that the colder the planet, the dryer it will be, because there will be so much of the water locked up in ice shelves. Consequently, more extreme deserts, and drier planet. This would naturally mean that the warmer theplanet, the wetter the planet, and the less extreme desert, correct? And we know that there have been several times, during this current interglacial, in which the Sahara Desert was far greener than today. If so, then we can assume that global warming will produce a greener Sahara.
So what is the evidence concerning this? Well look here at this latest scientific finding.
Quote:Sahara dried out slowly, not abruptly: study
Thu May 8, 2008 2:10pm EDT
By Alister Doyle, Environment Correspondent
OSLO (Reuters) - The once-green Sahara turned to desert over thousands of years rather than in an abrupt shift as previously believed, according to a study on Thursday that may help understanding of future climate changes.
And there are now signs of a tiny shift back towards greener conditions in parts of the Sahara, apparently because of global warming, said the lead author of the report about the desert's history published in the journal Science.
The study of ancient pollen, spores and aquatic organisms in sediments in Lake Yoa in northern Chad showed the region gradually shifted from savannah 6,000 years ago towards the arid conditions that took over about 2,700 years ago.
The findings, about one of the biggest environmental shifts of the past 10,000 years, challenge past belief based on evidence in marine sediments that a far quicker change created the world's biggest hot desert.
"The hypothesis (of a sudden shift) was astonishing but it was still taken up," said Stefan Kropelin of the University of Cologne in Germany, lead author of the study with scientists in Belgium, Canada, the United States, Sweden and France.
The scientists, studying the remote 3.5 sq km (1.4 sq mile) Lake Yoa, found the region had once had grasses and scattered acacia trees, ferns and herbs. The salty lake is renewed by groundwater welling up from beneath the desert.
A gradual drying, blamed on shifts in monsoon rains linked to shifts in the power of the sun, meant large amounts of dust started blowing in the region about 4,300 years ago. The Sahara now covers an area the size of the United States.
FORECASTS
Kropelin told Reuters that improved understanding of the formation of the Sahara might help climate modellers improve forecasts of what is in store from global warming, blamed by the U.N. Climate Panel on human emissions of greenhouse gases.
The panel says that some areas will be more vulnerable to drought, others to more storms or floods.
The Sahara got greener when temperatures rose around the end of the Ice Age about 12,000 years ago. Warmer air can absorb more moisture from the oceans and it fell as rain far inland.
"Today I think we have the same thing going on, a global warming," he said. And he said there were already greener signs in a huge area with almost no reliable weather records.
"I see a clear trend to a new greening of the Sahara, a very slow one," he said, based on visits to some of the remotest and uninhabited parts of the desert over the past two decades.
"You go to unoccupied areas over a long time and you know there was pure sand there without a single snake or scorpion. Now you see tens of kilometers covered by grass," he said.
In Darfur in Sudan, where U.N. officials say 300,000 people may have died in five years of revolt, slightly higher rainfall was more than offset by a rise in the human population to 7 million from 1 million half a century ago. People and their animals quickly eradicated any greenery.
So, the point is: the warmer the planet, the wetter and greener the planet. makes logical sense to me. Why can genuises, such as Algore, see this as well?
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All men are frauds. The only difference between them is that some admit it. I myself deny it.
H. L. Mencken
All men are frauds. The only difference between them is that some admit it. I myself deny it.
H. L. Mencken