released into the atmosphere, to prevent the onset of an ice age. I just goddamned give up!
~~~~~~~~~~~~~~~~~~~~Ocean warming's effect on phytoplankton
NASA satellite data show how global climate change hurts marine food chain
Jane Kay, Chronicle Environment Writer
Thursday, December 7, 2006
When the climate warms, there is a drop in the abundance of the ocean's phytoplankton, the tiny plants that feed krill, fish and whales, according to scientists who say new research offers the first clues to the future of marine life under global warming.
Ocean temperatures have generally risen over the last 50 years as the atmosphere warms. And now nine years of NASA satellite data published today in the journal Nature show that the growth rate and abundance of phytoplankton around the world decreases in warm ocean years and increases in cooler ocean years.
The findings are crucial because they show a consequence of the changing global climate at the most fundamental level. Scientists estimate that phytoplankton is responsible for about half of Earth's photosynthesis, a process that removes carbon dioxide from the atmosphere and converts it into organic carbon and oxygen that feeds nearly every ocean ecosystem.
Fewer phytoplankton consume less carbon dioxide, aggravating a cycle that can lead to even more warming.
Over the past decades, California scientists have linked declining plankton numbers to El Niños and other warm-water years in the Pacific Ocean, which set off a domino effect of fewer krill and young fish and eventually failed reproduction of seabirds and even deaths of seals and sea lions.
"What's amazing is this is the first time we see it on a global scale,'' said Dave Siegel, professor of marine science at UC Santa Barbara and a study author. "We have an inkling now what will happen to the ocean's biology in future climates.''
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http://sfgate.com/cgi-bin/article.cgi?f=/c/a/2006/12/07/MNG1JMQUL01.DTL