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 大伙新年好。来，咱们也来测试一把是不是投机的料 |
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大伙新年好。来，咱们也来测试一把是不是投机的料 -- theoretical - (837 Byte) 2011-2-03 周四, 12:35 (2461 reads) |
emperorfan
[博客]
年龄: 51
加入时间: 2010/02/05
文章: 2008
海归分: 814623
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作者：emperorfan 在 谈股论金 发贴, 来自【海归网】 http://www.haiguinet.com
比起鲸鱼，我更怕蜜蜂趋于灭绝
最近cocoa, 涨得不错，根据新兴市场对奢侈品的需求，cocoa 还能涨吧
我觉得自然生长，但依赖环境多于人工的，并且是中高端的食品原料都有涨力。
大冰溶会对冰区的鸟类，海狮象豹，熊有很大生态影响，要好远才能找到食物，
会有灭绝危险，好惨。
海平面升高的气候影响及农业影响要另查，
Greenland’s ice sheet melted at a record rate in 2010, and this could be a major contributor to sea level rise in coming decades.
The ice in Greenland melted so much last year that it formed rivers and lakes on top of the vast series of glaciers that covers much of the big Arctic island, with waterfalls flowing through cracks and holes toward the bottom of the ice sheet. Take a look at video from Marco Tedesco of City College of New York, who is leading a project to study what factors affect ice sheet melting. The photo at left shows a camp by the side of a stream flowing from a lake — all of it on top of the ice sheet.
“This past melt season was exceptional, with melting in some areas stretching up to 50 days longer than average,” Tedesco said in a statement. “Melting in 2010 started exceptionally early at the end of April and ended quite late in mid- September.”
Summer 2010 temperatures in Greenland were up to 5.4 degrees F (3 degrees C) above average, and there was reduced snowfall, Tedesco and his co-authors noted in an article in the current edition of Environmental Research Letters. Nuuk, Greenland’s capital, had the warmest spring and summer since records began there in 1873. Average summer temperatures vary widely, but in coastal areas hover around freezing.
This is in tune with studies released in the last week by the U.S. National Oceanic and Atmospheric Administration and the World Meteorological Organization finding 2010 was tied with 2005 and 1998 for the warmest year since modern global temperature record-keeping began in 1880.
With less snow cover, more bare ice was exposed to the sun, and because bare ice is darker than snow, it absorbs more solar radiation. So the more ice is uncovered, the more warming sunlight it absorbs and the more vulnerable it is to melting. Tedesco said other factors being examined include the impacts of lakes on the glacial surface, dust and soot deposited over the ice sheet.
The study was sponsored by World Wildlife Fund, NASA and the National Science Foundation.
“Sea level rise is expected to top 3 feet by 2100, largely due to melting from ice sheets,” World Wildlife Fund climate specialist Martin Sommerkorn said in a statement. An international assessment of Arctic conditions released in October found warmer air, less sea ice and melting glaciers, and said the region around the North Pole is unlikely to return to its formerly colder conditions any time soon.
作者：emperorfan 在 谈股论金 发贴, 来自【海归网】 http://www.haiguinet.com
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