Environmental Affairs
Learn more about our environment and invest in it: facts, numbers and opinions
Sea level rise and fall
World: de the last ca. 20 years
Source: Watts up with that ? d.d. Aug. 24th 2011.
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The red line in this image shows the long-term increase in global sea level since satellite altimeters began measuring it in the early 1990s. Since then, sea level has risen by a little more than an inch each decade, or about 3 millimeters per year. While most years have recorded a rise in global sea level, the recent drop of nearly a quarter of an inch, or half a centimeter, is attributable to the switch from El Niño to La Niña conditions in the Pacific. The insets show sea level changes in the Pacific Ocean caused by the recent El Niño and La Niña (see http://sealevel.jpl.nasa.gov/science/elninopdo for more information on these images). Image credit: S. Nerem, University of Colorado
Source
: Watts up with that ? d.d. Aug. 24th 2011. |
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Obama declared in a June 8, 2008 speech, that his presidency will be “the moment when the rise of the oceans began to slow and our planet began to heal.” Obama's prognostication occurred during his victory speech in St. Paul for the Democratic Party nomination. Most surprising, despite the fact that Obama said he would only “slow” the rise of the oceans, his presidency has presided over what some scientists are terming an “historic decline" in global sea levels. Obama appears to have underestimated his own powers to alter sea level (source: climatedepot.com).
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