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Global warming has forced some animals to evolve already

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TriSec Donating Member (191 posts) Send PM | Profile | Ignore Mon Jun-12-06 05:44 AM
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Global warming has forced some animals to evolve already
http://www.commondreams.org/headlines06/0609-02.htm

Some species of animals are changing genetically in order to adapt to rapid climate change within just a few generations, scientists believe.

Smaller animals in particular that can breed quickly, such as squirrels, some birds and insects, are showing signs of evolving new patterns of behaviour to increase their chances of survival. Scientists say that many of the genetic adaptations are to cope with changes in the length of the seasons rather than the absolute increases in summer temperatures.


Canadian Red Squirrel (Photo/Jason T. Fisher)
Larger animals and species that are slow to reproduce may on the other hand find it difficult to cope with climate change because they cannot adapt genetically as quickly as smaller, more fertile creatures that have rapid life cycles.

"Studies show that over the past several decades, rapid climate change has led to heritable, genetic changes in animal populations," said Christina Holzapfel, from the University of Oregon in Eugene.

Examples included Canadian red squirrels reproducing earlier in the year, German blackcap birds migrating and arriving earlier at their nesting grounds, and northern American mosquitoes living in water-filled leaves of carnivorous plants which can adjust their life cycles to shorter more "southern" day lengths.

More...
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Pab Sungenis Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-12-06 08:01 AM
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1. The Republicans don't believe in evolution....
...so why would this make them believe in Global Warming?
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Name removed Donating Member (0 posts) Send PM | Profile | Ignore Mon Jun-12-06 09:28 AM
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Viva_La_Revolution Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-12-06 12:00 PM
Response to Reply #2
3. Global chaos actually
warmer in some places, colder in some, bigger storms everywhere. At least you're farther along than most.
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Name removed Donating Member (0 posts) Send PM | Profile | Ignore Mon Jun-12-06 02:33 PM
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Viva_La_Revolution Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-12-06 02:53 PM
Response to Reply #4
5. bull
I suggest you do a little reading.

The temperature rises are directly correlated to pollution emissions, starting in the late 1800's.







99.5% of all articles in Peer-reviewed scientific journals agree - this is happening and we a major cause.

We could slow this down, maybe even in time to prevent extinction but that would entail changing our lifestyles. Too scary for most of the Sheeple to deal with, they will continue driving their SUVs, eating food grown 2000 miles away, and sucking up the world's resources without a care for the next generation.
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WindRavenX Donating Member (1000+ posts) Send PM | Profile | Ignore Mon Jun-12-06 04:26 PM
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6. we absolutely can affect Earth's climate
Cutting CO2 emissions is only part of the solution-- long term goals (like the Kyoto accord) must be acknowleged and followed by leaders of the world.
Other long term goals include:

1)Encouraging Zero Population Growth
2)Encouraging a more eco-friendly diet--western diets that rely heavily on meat are one of the biggest problems when trying to preserve the Amazon and other large blocks of forrests
3)Getting not just hybrid cars, but absolutely requiring a minimum MPG for ALL cars-- the technology exists, the car and oil companies just don't want to play this.

The fact is we are killing the planet, and in so, we are killing ourselves.
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