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- netwatch - Aug 26 2007 | science, environment, global warming
A telling sign of climate change is the declining amount of Arctic sea ice that remains at the end of summer. And it's not just an indicator. Arctic ice also influences climate by cooling the planet.
You can follow changes in sea-ice status at the Web site of the National Snow and Ice Data Center in Boulder, Colorado, which posts regular updates on ice conditions and analyses of trends. By mid-August, this year's melt had already broken the record set in 2005, when only 5.3 million square kilometers of ice were left at the end of the season, 31% below average. The site will provide fresh information until the melting halts, usually in September.
Volume 317, Number 5841, Issue of 24 August 2007
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