Arctic ice melting is actually occurring faster than computer climate models have predicted. ... complete melt could happen by 2030 ...

Arctic Sea Ice Shrinks to Record Low | By THE ASSOCIATED PRESS | Published: August 17, 2007 | Filed at 9:40 p.m. ET

WASHINGTON (AP) -- There was less sea ice in the Arctic on Friday than ever before on record, and the melting is continuing, the National Snow and Ice Data Center reported.

''Today is a historic day,'' said Mark Serreze, a senior research scientist at the center. ''This is the least sea ice we've ever seen in the satellite record and we have another month left to go in the melt season this year.''

Satellite measurements showed 2.02 million square miles of ice in the Arctic, falling below the Sept. 21, 2005, record minimum of 2.05 million square miles, the agency said.
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The puzzling thing, he said, is that the melting is actually occurring faster than computer climate models have predicted.

Several years ago he would have predicted a complete melt of Arctic sea ice in summer would occur by the year 2070 to 2100, Serreze said. But at the rates now occurring, a complete melt could happen by 2030, he said Friday.