| Subject: Re: actually not. |
Author:
Duncan7
|
[
Next Thread |
Previous Thread |
Next Message |
Previous Message
]
Date Posted: 08:24:15 11/26/06 Sun
In reply to:
sci guy
's message, "actually not." on 22:41:57 11/25/06 Sat
I find that hard to believe since the RW doesn't really care and the eco-freaks didn't want to be wrong.
>Saw an interview last week. It was a RW spin doctor
>who came up with the term "climate change" as well as
>several other nice ways of saying not-so-nice things.
>
>
>>Aren't you guys the one's that changed it to climate
>>change when you figured out the planet may in fact not
>>warm, but get colder? 6 of 1 1/2 dozen of another as
>>far as i'm concerned..
>>
>>>You DO realize that th article says that volcanoes
>>>COOL the earth, don't you?
>>>
>>>
>>>>Can I get mhy donation back?
>>>>
>>>>
>>>>
>>>>>just when we thought we had the weather predictions
>>>>>down. a new kink comes in to play. now we have
>space
>>>>>weather, volcanic weather, fire weather, land mass
>>>>>change weather.
>>>>>
>>>>>Volcanic eruptions on Iceland generated a cascade
>of
>>>>>events that led to record low levels of water in
>the
>>>>>Nile River in Africa and brought famine to the
>>region
>>>>>more than two centuries ago, a new study
>concludes.
>>>>>
>>>>>
>>>>>
>>>>>The findings will inform climate forecasting
>related
>>>>>to future volcanic activity.
>>>>>
>>>>>
>>>>>
>>>>>From June 1783 through February 1784, a series of
>10
>>>>>eruptions from the Laki Craters on this European
>>>>>island in the North Atlantic changed atmospheric
>>>>>conditions in most of the Northern Hemisphere.
>>>>>
>>>>>
>>>>>
>>>>>Unusual temperature and precipitation patterns
>>peaked
>>>>>in the summer of 1783, causing below normal
>rainfall
>>>>>in most of the Nile drainage basin and therefore
>>>>>record low levels in the mighty river for up to one
>>>>>year following the eruptions.
>>>>>
>>>>>
>>>>>
>>>>>When volcanic eruptions occur, large amounts of
>>>sulfur
>>>>>dioxide are released into the atmosphere. When this
>>>>>gas combines with water vapor, aerosol particles
>>>form.
>>>>>These particles reflect sunlight back to space and
>>>>>therefore cool average temperatures on Earth.
>>>>>
>>>>>
>>>>>
>>>>>Researchers used computer models to simulate how
>>>>>Iceland’s Laki eruptions affected temperature and
>>>>>rainfall levels over the stretch of land from the
>>>>>Atlantic ocean to the “horn of Africa,” known as
>the
>>>>>Sahel.
>>>>>
>>>>>
>>>>>
>>>>>Simulations showed that the aerosols formed by the
>>>>>eruptions cooled average temperatures in the
>>Northern
>>>>>Hemisphere by up to 5.4 degrees Fahrenheit. Tree
>>ring
>>>>>data in Alaska and Siberia also showed reduced
>>growth
>>>>>during the same summer, signifying cooler than
>>normal
>>>>>weather.
>>>>>
>>>>>
>>>>>
>>>>>The abnormally cool temperatures reduced the
>>>>>temperature difference between the land masses of
>>>>>Africa and Eurasia and their respective water
>>masses,
>>>>>the Atlantic and Indian oceans. Typically, a sharp
>>>>>contrast in temperature between land and sea drives
>>>>>roaring monsoon winds. Monsoons are seasonal shifts
>>>in
>>>>>wind direction that signify the beginning of the
>>>rainy
>>>>>season.
>>>>>
>>>>>
>>>>>
>>>>>The lack of monsoons led to a reduction in cloud
>>>cover
>>>>>over the Sahel of Africa, southern Arabian
>Peninsula
>>>>>and India that summer. This caused temperatures to
>>>>>increase by as much as 3.6 degrees Fahrenheit and
>>>>>induced drought in the region. The resulting food
>>>>>shortage reduced the population of the Nile Valley
>>by
>>>>>a sixth.
>>>>>
>>>>>
>>>>>
>>>>>"Some of the driest weather occurred over the Nile
>>>and
>>>>>Niger River watersheds," said lead author Luke
>Oman,
>>>a
>>>>>researcher from Rutgers University, NJ. "The
>>relative
>>>>>lack of cloud cover and increased temperature
>likely
>>>>>amplified evaporation, further lessening water
>>>>>available for run-off."
>>>>>
>>>>>
>>>>>
>>>>>This dry weather corresponded with record low river
>>>>>water levels from 1783 to 1784.
>>>>>
>>>>>
>>>>>
>>>>>“These findings may help us improve our predictions
>>>of
>>>>>climate response following the next strong
>>>>>high-latitude eruption, specifically concerning
>>>>>changes in temperature and precipitation," Oman
>>said.
>>>>>"Many societies are very dependent on seasonal
>>>>>precipitation for their livelihoods, and these
>>>>>predictions may ultimately allow communities time
>to
>>>>>plan for consequences, including impacts on
>regional
>>>>>food and water supplies."
>>>>>
>>>>>
>>>>>href="http://www.livescience.com/environment/061121
>_
>>e
>>>r
>>>>u
>>>>>ptions_nile.html">http://www.livescience.com/enviro
>n
>>m
>>>e
>>>>n
>>>>>t/061121_eruptions_nile.html
[
Next Thread |
Previous Thread |
Next Message |
Previous Message
]
| |
Feedback: 