facebook
twitter
rss
account
search
search
 

Arctic sea ice may be at 'tipping point'

Sept. 16, 2005 at 1:34 PM   |   Comments

BOULDER, Colo., Sept. 16 (UPI) -- Arctic ice melting may have accelerated to a "tipping point" that will produce a vicious cycle of melting and heating, U.S. scientists say.

Another record loss of sea ice in the Arctic this summer is expected by Arctic specialists at the National Snow and Ice Data Center at Colorado University, who have been studying polar sea ice since 1978, the Independent reported Friday.

Scientists fear that the Arctic has now entered an irreversible phase of warming that will further accelerate the loss of the polar sea ice creating a rise in ocean levels.

In the past, polar ice would melt in the summer and refreeze in the winter, however, for the fourth year in a row the sea ice in August has fallen below the monthly downward trend -- indicating the melting has accelerated.

"This will be four Septembers in a row that we've seen a downward trend," said Mark Serreze, a scientist at the Snow and Ice Data Center. "The feeling is we are reaching a tipping point or threshold beyond which sea ice will not recover."

Topics: Mark Serreze
© 2005 United Press International, Inc. All Rights Reserved. Any reproduction, republication, redistribution and/or modification of any UPI content is expressly prohibited without UPI's prior written consent.
Recommended UPI Stories
Featured UPI Collection
trending
Notable deaths of 2014 [PHOTOS]

Notable deaths of 2014 [PHOTOS]

Most Popular
1
Hurricane Katrina nine years later
2
Latvia boasts world's first net for migrating bats
3
Apple reportedly delays launch of rumored iWatch
4
New space debris monitoring facility set for Australia
5
Type Ia supernovas: the zombies of the cosmos
Trending News
Video
x
Feedback