2008 A Cold Year

This Reuters article reports that the World Meteorological Organization says that the first half of 2008 was the coldest January to June of the past eight years. Note these wise words:

Global temperatures vary annually according to natural cycles.

One thing we know for sure about climate: it changes. In times past, when humans had little or no impact, the world experienced warming spells, and cooling spells; tropical weather and ice ages. There is every reason to expect that the forces which brought about those earlier changes are still extant.