A High Degree of Climate Uncertainty

Just one more thing that science has figured out on global warming, er, climate change.

In a report about a 2007 Chinese dust cloud that circled the earth completely in only 13 days, there is this interesting conclusion:

The dust cloud measured about 3 km (1.9 miles) vertically and up to 2,000 km horizontally and it stayed that way even after one full trip around the globe.

"The reason why the cloud structure was very well maintained was because the dust was uplifted ... where the atmosphere is very stable," Uno said.

Researchers believe dust particles trigger the formation of high-altitude cirrus clouds -- although experts have no idea whether such clouds warm or cool the earth.

Maybe they should consult Archbishop Algore.