Text of a story at http://www.bloomberg.com/apps/news?pid=20601110&sid=aIe9swvOqwIY: Arctic Sea Ice Underestimated for Weeks Due to Faulty Sensor By Alex Morales Feb. 20 (Bloomberg) -- A glitch in satellite sensors caused scientists to underestimate the extent of Arctic sea ice by 500,000 square... Sign in to see full entry.