Tuesday, April 22, 2008

Climate Change and the Pacific Decadal Oscillation

I'm still working and grumpy, here, learn yerself some climatology.
From PhysOrg:
(14:44 EDT, April 22, 2008)

Larger Pacific Climate Event Helps Current La Nina Linger
... The image also shows that this La Niña is occurring within the context of a larger climate event, the early stages of a cool phase of the basin-wide Pacific Decadal Oscillation. The Pacific Decadal Oscillation is a long-term fluctuation of the Pacific Ocean that waxes and wanes between cool and warm phases approximately every five to 20 years....

“The comings and goings of El Niño, La Niña and the Pacific Decadal Oscillation are part of a longer, ongoing change in global climate,” said Josh Willis, a JPL oceanographer and climate scientist. Sea level rise and global warming due to increases in greenhouse gases can be strongly affected by large natural climate phenomenon such as the Pacific Decadal Oscillation and the El Nino-Southern Oscillation. “In fact,” said Willis, “these natural climate phenomena can sometimes hide global warming caused by human activities. Or they can have the opposite effect of accentuating it.”>>>MORE

Here's the monthly PDO chart.
You might want to
look up the word famine. And store a couple tons of wheat in a vermin proof room. The risk of a major crop failure somewhere in the world over the next ten years just went up. My best guess (wild-ass variant) would be northeastern Russia/Ukraine. Which could get interesting:
...With the international financial institutions working on a slow track, countries have been cutting their own deals. Ukrainian President Viktor Yushchenko said on Tuesday that he had agreed to let Libya grow wheat on 247,000 acres of land in the Ukraine. In exchange, Libya promised to include the former Soviet republic in construction and gas deals.
-Wall Street Journal
April 14, 2008 Page 1A