The National Snow and Ice Data Center, which in May 2008 predicted the Arctic would be ice free during the 2008 melt season, underestimated the amount of Arctic ice by as much as 500,000 sq. Kilometers (That's 1.3 times the size of Montana, 1.2 times the size of California, or .78 times the size of Texas .
The reason? Sensor drift.
How was it discovered? Slashdot readers looked at the pictures and then emailed to ask why ares that were obviously covered in ice were being reported as ice free. Leading to the question who are you going to trust the sensors or your damn lying eyes?
source
This is the type of item I would normally e-mail out to a ton of other blogs, but since I never get an answer, except from Ace, I am just not going to bother any more.
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