Summary:
Calculations show that dangerous levels of global warming cannot now be avoided. The life-style changes needed internationally are so wide-reaching that effective and immediate action is unlikely. As Australia is one of the few countries that can survive, we should prepare now for the inevitable. Ethical issues will distort our responses for years to come if we fail to address them now.
Click on the Link below to view the PDF containing the full Article
Tags: Climate Change
So few are really aware of whats happenning to our planet. Many are in imminent Danger while we just carry on doing the same old things.
http://www.planetextinction.co.....ry_09.html
Read the Article on the link above and see if you can answer the questions.
Point of no return for the Arctic Climate
A new study published in the Geophysical Research Letters posits that a dramatic change in atmospheric circulation patterns since the beginning of the decade, with centres of high pressure in winter shifting toward the north-east. The new pattern of sudden climate change is characterized by “poleward atmospheric and oceanic heat transport,” the authors write in the study, a transport which drives temperature increases in the Arctic.
Behind the complex language on which the study is based is a frightening possibility: climate change in the Arctic could already have reached the point of no return. Climate researchers have long been warning of such “tipping points,” and that crossing them could mean irreversible developments for eco-systems and humanity. In the case of the Arctic, that could mean a complete disappearance of ice in the region during the summer months. Such an eventuality would then further magnify global warming, due to the fact that bright white ice reflects sunlight back into the atmosphere whereas dark coloured land and ocean absorbs heat.
The waters around the North Pole are heavily influenced by the currents coursing through the Atlantic and Pacific Oceans. Those currents are driven by conflicting pressure systems in each ocean: in the Pacific, the low pressure zone located near the Aleutian Islands extending west from Alaska is doing battle with a subtropical high pressure zone further south; in the Atlantic the currents are determined by the Azores High and the Icelandic Low.
Since the beginning of the decade a bipolar pattern has developed in which a high pressure system over Canada and a low pressure system over Siberia force Artic winds to blow north-south, meaning that warmer air from the south has no problem making its way into the Arctic region.
http://www.spiegel.de/internat.....61,00.html
John James
For the Crisis Coalition Inc, at http://www.planetextinction.com