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Old Aug 7th, 2012, 08:24 AM   #1
Free Thinker
 
 
Join Date: Nov 1999
Posts: 14,316
nothing to worry about. the right wing intelligensia on et have declared global warming false:



Study Finds More of Earth Is Hotter and Says Global Warming Is at Work

The percentage of the earth’s land surface covered by extreme heat in the summer has soared in recent decades, from less than 1 percent in the years before 1980 to as much as 13 percent in recent years, according to a new scientific paper.
The change is so drastic, the paper says, that scientists can claim with near certainty that events like the Texas heat wave last year, the Russian heat wave of 2010 and the European heat wave of 2003 would not have happened without the planetary warming caused by the human release of greenhouse gases.

http://www.nytimes.com/2012/08/07/sc...&smid=tw-share
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Old Aug 7th, 2012, 09:29 AM   #2
stoic
 
 
Join Date: Aug 2007
Location: Denver
Posts: 497
The Carboniferous Rainforest Collapse (CRC) was an extinction event that occurred around 305 million years ago in the Carboniferous period. Vast coal forests (so called because the compacted remains of the dense vegetation formed coal seams) covered the equatorial region of Euramerica (Europe and America). Climate change devastated tropical rainforests, fragmenting the forests into isolated 'islands' and causing the extinction of many plant and animal species. There are several hypotheses about the nature and cause of the Carboniferous Rainforest Collapse, some of which include climate change. The cooler, drier climate conditions were not favorable to the growth of rainforests and much of the biodiversity within them. Rainforests shrank into isolated patches, these islands of rainforest were mostly confined to wet valleys further and further apart. Then a succeeding period of global warming reversed the climatic trend; the remaining rainforests, unable to survive the rapidly changing conditions, were finally wiped out. Though the exact speed and nature of the collapse is not clear, it thought to have occurred relatively quickly in geologic terms, only a few thousand years at most.
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Old Aug 7th, 2012, 09:51 AM   #3
futurecurrents
 
 
Join Date: May 2002
Posts: 6,653
Quote:
Quote from stoic:

The Carboniferous Rainforest Collapse (CRC) was an extinction event that occurred around 305 million years ago in the Carboniferous period. Vast coal forests (so called because the compacted remains of the dense vegetation formed coal seams) covered the equatorial region of Euramerica (Europe and America). Climate change devastated tropical rainforests, fragmenting the forests into isolated 'islands' and causing the extinction of many plant and animal species. There are several hypotheses about the nature and cause of the Carboniferous Rainforest Collapse, some of which include climate change. The cooler, drier climate conditions were not favorable to the growth of rainforests and much of the biodiversity within them. Rainforests shrank into isolated patches, these islands of rainforest were mostly confined to wet valleys further and further apart. Then a succeeding period of global warming reversed the climatic trend; the remaining rainforests, unable to survive the rapidly changing conditions, were finally wiped out. Though the exact speed and nature of the collapse is not clear, it thought to have occurred relatively quickly in geologic terms, only a few thousand years at most.
Yeah. So what?
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Old Aug 7th, 2012, 11:54 AM   #4
stoic
 
 
Join Date: Aug 2007
Location: Denver
Posts: 497
Quote:
Quote from futurecurrents:

Yeah. So what?
I'm so sorry. I must apologize. I'm always making the same mistake about liberals, Democrats, and those that buy into all the leftwing propaganda. I must remind myself that , in reality they're intellectual light weights. For this I am truly repentant.

The point is that Climate Change, global warming or global cooling has happened before. Over the past 740,000 years there have been eight glacial cycles. The entire Quaternary Period, starting 2.58 Million years ago to the PRESENT. No completely satisfactory theory has been proposed to account for Earth's history of glaciations and warming cycles. The cause may be related to several simultaneously occurring factors, such as astronomical cycles, atmospheric composition, plate tectonics, and ocean currents.

Astronomical Cycles:
Changes in the orbital eccentricity of Earth occur on a cycle of about 100,000 years. The inclination, or tilt, of Earth's axis varies periodically between 22° and 24.5°. The tilt of Earth's axis is responsible for the seasons; the greater the tilt, the greater the contrast between summer and winter temperatures. Changes in the tilt occur in a cycle 41,000 years long. Precession of the equinoxes, or wobbles on Earth's spin axis, complete every 21,700 years.

Atmospheric composition
Glacial and interglacial cycles as represented by atmospheric CO2, measured from ice core samples going back 650,000 years
One theory holds that decreases in atmospheric CO2, an important greenhouse gas, started the long-term cooling trend that eventually led to glaciations. Recent studies of the CO2 content of gas bubbles preserved in the Greenland ice cores lend support to this idea. The geochemical cycle of carbon indicates more than a 10-fold decrease in atmospheric CO2 since the middle of the Mesozoic Era. However, it is unclear what caused the decline in CO2 levels, and whether this decline is the cause of global cooling or if it is the result.

Plate tectonics and ocean currents
An important component in the long-term temperature changes may be related to the positions of the continents, relative to the poles, but it cannot explain the rapid retreat and advances of glaciers. This relation can control the circulation of the oceans and the atmosphere, affecting how ocean currents carry heat to high latitude. Throughout most of the geologic time, the North Pole appears to have been in a broad, open ocean that allowed major ocean currents to move unabated. Equatorial waters flowed into the polar regions, warming them with water from the more temperate latitudes. This unrestricted circulation produced mild, uniform climates that persisted throughout most of geologic time.

In popular culture, there is often reference to "the next ice age." Technically, since the earth is ALREADY in an ice age at present, this usually refers to the next glacial period because the earth is currently in an interglacial period. The next glacial period seems to be rapidly approaching, when climatologists met in 1972 to discuss this issue of a period of so-called global cooling. The previous interglacial periods seemed to have lasted about 10,000 years each. Assuming that the present interglacial period would be just as long, they concluded, "it is likely that the present-day warm epoch will terminate relatively soon."

Once again I must apologize for all the climatologist jargon. If you read it and fail to comprehend. Try reading it a few more times, (it's ok if your lips move if this increases reading comprehension, and it's ok if you have to look up the big words ).

As for the so called rightwing intelligentsia (< correct spelling) on et, climate change is an undisputed fact, sometimes cooler, sometimes warmer. It's been going on since there was a climate. What I find so annoying is this constant Chicken Little......"the sky is falling, the sky is falling... " regurgitation based on such a limited amount of data (In geological terms) spewed out by sue do-intellectuals who seem to be interested only in seeing their name in print and the renewal of their grant.
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Old Aug 7th, 2012, 12:07 PM   #5
Free Thinker
 
 
Join Date: Nov 1999
Posts: 14,316
Quote:
Quote from stoic:

in reality they're intellectual light weights.
thank you for setting the scientists straight. what a wonderful resource et is with all its right wing intellectual heavy weights. where else could you find the caliber of people who can look at the work a scientist may have spent his whole life on and within 30 seconds declare it false.




Doesn't it seem odd that the "evidence for the existence global warming" is conclusive for the greatest human minds who spend their professional lives exploring how the universe functions, yet it is false to uneducated simpletons who have access to internet-linked terminals?
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Old Aug 7th, 2012, 12:25 PM   #6
TheDudeofLife
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Join Date: Jul 2005
Posts: 899
I am not sure which side of the Climate Change argument to believe. I guess I really don't care either way. There doesn't seem to be anything practical that can be done to stop it if it is true. In that case it is inevitable in the way that we all will die one day. Why waste time worrying about it.
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