Sunday, July 20, 2008

Final Symbol of Mine :)

My Final Symbol


Description:

I am using 4 colors; Blue, Black, Grey and White. On the left side is the walrus and on the right side is the melting ice. I have combined it together to make a symbol.

The ice

I color it with light Blue to make it looks more like an ice. As you can see, the ice is melting. It is because of the global warming that is happening now.

The Sea

I color it with dark blue to make it looks like a sea. As you can see, the sea is bigger than the ice because of the increasing sea level cause by the melting ice.

The Walrus

I color it with dark Grey and light Grey because it is the walrus’s color. I put Red color for the mouth and Black color for the eye and nose. It looks sad because it’s habitat will destroyed.

My Sketch



My Ideas

The ice
The polar bear on the ice
The walrus

My idea is instead of the polar bear on the ice, i'll put the walrus on it.
It's still the same, right? :)

Melting sea ice threatens WALRUSES

Walruses need thick sea ice to support their weight and the shallow waters of the coastal zone to feed. Unlike seals, they cannot swim indefinitely and must pause after foraging. As the warming climate in the Arctic reduces the thickness and expanse of the ice, it also reduces the walrus’ habitat.

Evidence points to a clear trend towards an overall warming in the Arctic. As a result, the sea ice thickness has been reduced by 40 percent in the last 30 years. Some models suggest that by 2080, or possibly earlier, arctic sea ice will completely disappear during the summer months.

There are two sub-species of the species: the Pacific walrus (Odobenus rosmarus divergens), found around Alaska and northeast Russia; and the Atlantic walrus (Odobenus rosmarus rosmarus), found in the Canadian Arctic, in the waters of Greenland, Svalbard and the western portion of the Russian Arctic.

~reference: http://www.cnn.com/2007/TECH/science/12/24/ice.walrus.ap/~

Melting Ice Caps and Rising Sea Levels

One of the great fears generated by global warming is that the ocean is about to rise and swallow our coasts. These concerns have been heightened by the substantial uptick in Atlantic hurricane activity that began in 1995.

Those arguing that global warming is an overblown issue have been claiming for years that "consensus" forecasts of sea-level are equally overwrought. The United Nations' Intergovernmental Panel on Climate Change predicts a global average rise of from 3.5 to 34 inches by 2100, with a central estimate of 19 inches. Depending upon how you slice or dice the data, the last century saw maybe six inches.

Warmer water evaporates more moisture. The colder the land surface over which that moisture passes, the more it snows. So, Antarctica as a whole should gain snow and ice. Last year, C.H. Davis published a paper in Science about how this accumulating snowfall over East Antarctica was reducing sea level rise. This year, Duncan Wingham, at the 2005 Earth Observations summit in Brussels, demonstrated the phenomenon is observed all over Antarctica.

The only other masses of ice on the planet that can contribute to sea level rise are the non-polar glaciers, but they are very few and far between. The biggest is the Himalayan ice cap, but it's so high that a substantial portion will always remain.If all these glaciers melted completely -- including the Himalayan ice cap -- sea level could rise no more than five to seven inches, because there's just not that much mass of ice, compared to Antarctica and Greenland.

~reference: http://www.capmag.com/article.asp?ID=4470~

Global Warming

Global warming is the increase in the average measured temperature of the Earth's near-surface air and oceans since the mid-twentieth century, and its projected continuation.

Increasing global temperature is expected to cause sea level to rise, an increase in the intensity of extreme weather events, and significant changes to the amount and pattern of precipitation. Other expected effects of global warming include changes in agricultural yields, modifications of trade routes, glacier retreat, species extinctions and increases in the ranges of disease vectors.

~reference: http://en.wikipedia.org/wiki/Global_warming~