Global Cooling?

I have read in the past that due to global warming, if/when the majority of the ice in the North Pole melts, all that fresh water will come rushing in to the oceans destroying a centuries old current that cycles warm air through the Atlantic from Europe to America and back around. If this cycle is broken it would actually cause global cooling, and possibly create a new mini ice age. So global warming may not be what we have to fear here, but actual global cooling in the long run. Another recent study of sun spots and current temperature also shows the possibility of cooling instead of the much feared warming everyone keeps hearing about.

http://www.dailygalaxy.com/my_weblog/2008/08/is-a-new-little.html