The News I

Polar bears resort to cannibalism as Arctic ice shrinks


http://edition.cnn.com/2008/TECH/09/23/arctic.ice/index.html

These news talk about the ice dwindle in the arctic sea. The climate change are having such an impact that the ice surfice is deacrising or has already decreased 40% in the last 30 years. That suppose a lot of global problems. First of all, the fact the the ice is decreasing that much menas that the rain cicle will change. In northern USA for instance, it will rain less but the rain fall will be heavier. In Europe but, it will rain more frequently, like in the mediterranean area.
But on the other size, this huge Ice surface reflects solar radiation and keeps the world cooler but without the ice, the water will heat up and it will get warmer everywere.
A good way to notice that is the behaviour of a autochthonous species living there: The polar bear. They depend on that ice, living on it. But as the ice surface shrinks, it can't stay the weight of the polar bear, it breaks, and because of that the polar bear even drownes. But they also have huge problems to get food huntign other species. For that, the last resort they have is cannibalism, something observed first in 2004 when a male broke into a female den and killed her.
To change that, we have to change our behaviour, our culture, our lifestyle. At the and, our life also depends on whats happening so far away at the top of the northern hemisphere.