Round Top Lake (p. 2 of Northern Sierra Nevada photos) is my favorite place for global climate research. At that elevation (2800 m?) the pine trees around the lake must really struggle in order to survive. They grow in tight clumps, rather than individually. Why?
The trees in any given clump are genetically identical; they reproduce asexually. A new tree trunk will sprout outward from an existing root system. Apparently the seeds from pinecones that do sprout can't survive the cold Winters.
Another interesting fact: There is a small gap between the trees around the lake and the trees further down. Question: How did the origin trees get to the lake?
Answer: The climate of 1000 years ago was somewhat warmer than it has been in recent years, even with global warming. The original trees sprouted from seeds at a time when the Winters were milder.
Several years ago, I was surprised to see a knee-high seedling a short distance outside the crescent of tree clumps. However it did not survive. When I see new seedlings that grow to 2 m in height, then I will believe that the climate is warmer than it was 1000 years ago.
As Mr. Spock could have said: Have faith in logic!
If you want to see the effects of global warming, take a look at the weather. In Sweden the weather is very different, we almost have a tropic climate in periods. Way too warm. Combine that with the damaged ozone layer you'll get some hot weather and dangerous sun. They warn people to sunbath novadays, the sun is too powerful.
Take a look at the sea levels, they rises fast as a result of melting ice. And it's a lot of ice melting every year.
Apparently those damned Martians love their SUVs as much as Americans do! Seriously though, the evidence for Global Warming on Mars is less conclusive than on Earth, largely because we haven't been taking measurements there for as long as we have on our homeworld. However it is an interesting coincidence that one of our planetary neighbors seems to be experiencing GW at the same time that we are. Or is it a coincidence?
I first saw this fascinating article after Maple posted it in Tribe. It is interesting that some people view global warming as a big problem, and others view it as a business opportunity. It reminds me of the story of the blind men and the elephant!
All this what happens around has made me tired. I just live my life and that's it. I'm too tired to try to carry whole world on my shoulders and worry the evil I see around. Today I feel good, I got my beloved ones around me, sun is shining - it's a good day to die!
Sillä elämäni aikana olen niin paljon kokenut ja menettänyt, ettei turha pelko minua vaivaa. (M.Waltari:Sinuhe, egyptian)
HURRICANES
There has been an increase in the number of big (Category 4 and 5) hurricanes in recent years. Some scientists think that Global Warming is playing a role. If you want to read more about it, here is the URL:
http://en.wikipedia.org/wiki/Hurricane# ... e_activity
The US Supreme Court decided on Monday to hear a case that will bring climate change and the regulation of carbon dioxide emissions before the court for the first time. The case could force the US Environmental Protection Agency (EPA) to regulate CO2 emissions from cars and other mobile sources.
Asia's largest rivers, the Ganges and the Brahmaputra, join in the world's most extensive delta and flow into the Bay of Bengal. There lies Bangladesh, a nation of 140 million people beset by poverty and the floods of the rivers, and now also affected by rising sea level.
THE NORTH ATLANTIC DRIFT
is a relatively warm ocean current that moderates the climate of Western European. There is unproven scientific speculation that Global Warming may disrupt thermohaline circulation in the North Atlantic, thereby weakening the North Atlantic Drift. If so, then its Wintertime warming influence on the climate of Western Europe may decrease. Here is the link to the Wikipedia article:
http://en.wikipedia.org/wiki/Gulf_stream