Artic sea ice is melting faster than generally expected, accordimg to data from European Agency Satellite Cryosat.
Read more:
http://www.bbc.co.uk...onment-19244895
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5
Artic Sea Ice is Vanishing Faster Than Expected!
Started by artistry, Aug 13 2012 06:00 PM
17 replies to this topic
#3
Posted 14 August 2012 - 04:03 AM
Similar topics.
http://www.altenergy...-savethearctic/
http://www.altenergy...a-ice-retreats/
http://www.altenergy...-warming-gases/
http://www.altenergy...inking-sea-ice/
If they talked about it as much as we do, it's no wonder there markers are worse than they thought.
It's funny though, the media is silent about it. Too scary to report?
Thanks Artistry for that post.
http://www.altenergy...-savethearctic/
http://www.altenergy...a-ice-retreats/
http://www.altenergy...-warming-gases/
http://www.altenergy...inking-sea-ice/
If they talked about it as much as we do, it's no wonder there markers are worse than they thought.
It's funny though, the media is silent about it. Too scary to report?
Thanks Artistry for that post.
#5
Posted 16 August 2012 - 03:55 PM
artistry, on 16 August 2012 - 03:22 PM, said:
Very welcome. The press would rather concentrate on the crap that Romney is spreading. Like his lesson on his "white board" today, Lies and confusion, from a to z. Sorry to get off the subject.
#7
Posted 16 August 2012 - 05:49 PM
I have been talking to my family about this issue for years. They never pay any attention. Yesterday, my mom asked me what's going to happen with all the ice melts? I was so shocked by her question. I was even more shocked by her next question. "Are we going to float away?" I said, "Float to where? We're going to drown." I felt bad after I said it because she had a look of horror on her face. The good thing is that she finally has an interest in recycling and going green.
#8
Posted 17 August 2012 - 04:13 AM
Hardison, on 16 August 2012 - 05:49 PM, said:
I have been talking to my family about this issue for years. They never pay any attention. Yesterday, my mom asked me what's going to happen with all the ice melts? I was so shocked by her question. I was even more shocked by her next question. "Are we going to float away?" I said, "Float to where? We're going to drown." I felt bad after I said it because she had a look of horror on her face. The good thing is that she finally has an interest in recycling and going green.
#9
Posted 17 August 2012 - 05:48 AM
I see that this is likely to affect the weather in Europe considerably. We're already seeing some very strange weather patterns. Spain is having its hottest weather for years, whereas not too far away, the UK is experiencing its worst-ever summer. In a country where rainfall is always significant, that's pretty grim. Where is it all going to end? It certainly looks like the schedule has speeded up somewhat.
#11
Posted 27 August 2012 - 01:42 PM
New records shattered again.
Artic sea ice (the equivalent to the size of South Carolina-in a 24 hour period) is disappearing.
The new low, set yesterday beat the low of 2007, and summer isn't over yet.
Instead of asking-"Got milk?" we should be asking-
"Got Ice?"
The plunging graft on the link should give us all pause.
Source
Artic sea ice (the equivalent to the size of South Carolina-in a 24 hour period) is disappearing.
The new low, set yesterday beat the low of 2007, and summer isn't over yet.
Instead of asking-"Got milk?" we should be asking-
"Got Ice?"
The plunging graft on the link should give us all pause.
Source
#13
Posted 08 January 2013 - 04:53 AM
"Between 1992 and 2011, Greenland lost 152 gigatonnes of ice, West Antarctica lost 65 gigatonnes, and the
Antarctic Peninsula lost 20 gigatonnes."
http://grist.org/new...during-the-90s/
Antarctic Peninsula lost 20 gigatonnes."
http://grist.org/new...during-the-90s/
#14
Posted 28 March 2013 - 05:27 AM
Update-
"As of March 15, ice covered 5.84 million square miles of ocean, the sixth-lowest since satellite observations began in the 1970’s, and 283,000 square miles lower than the 1979-2000 average.
Reflecting the influence of global warming, the 10 lowest sea ice maximums have all occurred over the past 10 years.
Last summer’s ice minimum, moreover, was the lowest on record, with 2007 coming in a distant second.
Taken together, it’s one more sign that the planet is warming under the influence of heat-trapping greenhouse gases.
This feedback cycle, known as Arctic amplification, triggered by warming temperatures, has been reducing ice cover
more or less steadily for the past 40 years, at least.
This sea ice decline may be impacting areas well outside the Arctic Circle, by setting in motion a chain of events
that lead to altered weather patterns in the Northern Hemisphere, favoring some types of extreme weather events."
Climate Central via Huffington Post Article
"As of March 15, ice covered 5.84 million square miles of ocean, the sixth-lowest since satellite observations began in the 1970’s, and 283,000 square miles lower than the 1979-2000 average.
Reflecting the influence of global warming, the 10 lowest sea ice maximums have all occurred over the past 10 years.
Last summer’s ice minimum, moreover, was the lowest on record, with 2007 coming in a distant second.
Taken together, it’s one more sign that the planet is warming under the influence of heat-trapping greenhouse gases.
This feedback cycle, known as Arctic amplification, triggered by warming temperatures, has been reducing ice cover
more or less steadily for the past 40 years, at least.
This sea ice decline may be impacting areas well outside the Arctic Circle, by setting in motion a chain of events
that lead to altered weather patterns in the Northern Hemisphere, favoring some types of extreme weather events."
Climate Central via Huffington Post Article
#15
Posted 28 March 2013 - 06:36 PM
Sea ice studies.
Are there studies that conclude otherwise. Of course. Watkins and Simmonds (2000) looked at data from Special Sensor Microwave Imager (SSM/I). This study noted significant increases in sea ice area and a longer ice period. Study lasting from 1978 to 1996.
Watkins, A.B. and Simmonds, I. 2000. Current trends in Antarctic sea ice: The 1990's impact on a short climatology. Journal of Climate 13: 4441-4451.
Hanna (2001) took this data and and concluded the same. "An ongoing slight but significant hemispheric increase of 3.7 (+or-0.3%) in extent and 6.6(+or-1.5%) in area."
Hanna, E. 2001. Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO. Geophysical Research Letters 28. 1595-1598.
Parkinson (2002) used satellite passive microwave data to observe a longer sea ice season throughout the Southern Ocean from 1979 to 1999. Parkinson (2004) followed up noting an increase in Southern Ocean sea ice extent of 12,380 +or- 1,730 km^2 per year.
Parkinson, C.L. 2002. Trends in the length of the Southern Ocean sea-ice season, 1979-99, Annals of Glaciology 34. 435-440. Same Antarctic Science 16. 387-400.
Zwally et al. (2002) used passive microwave satellite data. From 1979 to 1998 this study recorded that sea ice extent in the Southern Ocean increased by 11,181 square kilometers.
Zwally, H.J., Comiso, J.C., Parkinson, C.L. Cavalieri, K.J. and Gloersen, P. 2002. Variability of Antarctic sea ice 1979-1998. Journal of Geophysical Research 107. 10.1029/2000JC000733.
Yuan and Martinson (2000) used SSM/I data and measurements from Nimbus-7 Scanning Multichannel Microwave Radiometer and recorded southern ice was extending toward the equator by 0.011 degree of latitude per year.
Yuan, X. And Martinson, D.G. 2000. Antarctic sea ice extent variability and its global connectivity. Journal of Climate 13. 1697-1717.
Belchansky et al. (2004). A study from 1988 to 2001 of Arctic ice noted a decline of 1.4 percent per year. In fall of 1996 reported, "a large multiyear ice recruitment of over 10^5 km^2 fully replenished the previous 8 year decline in total area." The same study concludes "insufficient to project long-term trends."
Belchansky, G.I., Douglas, D.C., Alpatsky, I.V. and Platonov, N.G. 2004. Spatial and temporal multiyear sea ice distributions in the Arctic: A neural network analysis of SSM/I data, 1988-2001. Journal of Geophysical Research 109: 10.1029?2004JC002388.
Winsor (2001) analyzed data from 6 submarine cruises that covered the central Arctic Basin from 1991 to 1997 and reported sea ice thickness almost constant.
Winsor, P. 2001. Arctic sea ice thickness remained constant during the 1990's. Geophysical Research Letters 28. 1039-1041.
Polyakov et al. (2002) used Russian landfast-ice data concludes no significant trend.
Polyakov, I.V., Alekseev, G.V., Bekryaev, R.V., Bhatt, U., Colony, R.L., Johnson, M.A., Karklin, V.P., Makshtas, A.P., Walsh, D. And Yulin A.V. 2002. Observationally based assessment of polar amplification of global warming. Geophysical Research Letters. 29: 10.1029/2001GL011111.
I might also point out other research by the scientist from the OP link.
Lazon et al. (2003) used data from radar altimeters aboard ERS-1 and 2 satellites to measure thickness of Arctic sea ice. There observations revealed, "an interannual variability in ice thichness at higher frequency, and of greater amplitude, than simulated by regional Arctic models," "The conclusion from numerical models that changes in the ice thickness occur on much longer timescales than changes in ice extent." Also showed, "Sea ice mass can change by up to 16% within one year." Laxon et al. concluded that "errors are present in current simulations of Arctic sea ice." "Until models properly reproduce the observed high-frequency, and thermodynamically driven, variability in sea ice thickness, simulations of both recent, and future, changes in Arctic ice cover will be open to question."
Lazon, S., Peacock, N. and Smith, D. 2003. High interannual variability of sea ice thickness in the Arctic region. Nature 425. 947-950.
Are there studies that conclude otherwise. Of course. Watkins and Simmonds (2000) looked at data from Special Sensor Microwave Imager (SSM/I). This study noted significant increases in sea ice area and a longer ice period. Study lasting from 1978 to 1996.
Watkins, A.B. and Simmonds, I. 2000. Current trends in Antarctic sea ice: The 1990's impact on a short climatology. Journal of Climate 13: 4441-4451.
Hanna (2001) took this data and and concluded the same. "An ongoing slight but significant hemispheric increase of 3.7 (+or-0.3%) in extent and 6.6(+or-1.5%) in area."
Hanna, E. 2001. Anomalous peak in Antarctic sea-ice area, winter 1998, coincident with ENSO. Geophysical Research Letters 28. 1595-1598.
Parkinson (2002) used satellite passive microwave data to observe a longer sea ice season throughout the Southern Ocean from 1979 to 1999. Parkinson (2004) followed up noting an increase in Southern Ocean sea ice extent of 12,380 +or- 1,730 km^2 per year.
Parkinson, C.L. 2002. Trends in the length of the Southern Ocean sea-ice season, 1979-99, Annals of Glaciology 34. 435-440. Same Antarctic Science 16. 387-400.
Zwally et al. (2002) used passive microwave satellite data. From 1979 to 1998 this study recorded that sea ice extent in the Southern Ocean increased by 11,181 square kilometers.
Zwally, H.J., Comiso, J.C., Parkinson, C.L. Cavalieri, K.J. and Gloersen, P. 2002. Variability of Antarctic sea ice 1979-1998. Journal of Geophysical Research 107. 10.1029/2000JC000733.
Yuan and Martinson (2000) used SSM/I data and measurements from Nimbus-7 Scanning Multichannel Microwave Radiometer and recorded southern ice was extending toward the equator by 0.011 degree of latitude per year.
Yuan, X. And Martinson, D.G. 2000. Antarctic sea ice extent variability and its global connectivity. Journal of Climate 13. 1697-1717.
Belchansky et al. (2004). A study from 1988 to 2001 of Arctic ice noted a decline of 1.4 percent per year. In fall of 1996 reported, "a large multiyear ice recruitment of over 10^5 km^2 fully replenished the previous 8 year decline in total area." The same study concludes "insufficient to project long-term trends."
Belchansky, G.I., Douglas, D.C., Alpatsky, I.V. and Platonov, N.G. 2004. Spatial and temporal multiyear sea ice distributions in the Arctic: A neural network analysis of SSM/I data, 1988-2001. Journal of Geophysical Research 109: 10.1029?2004JC002388.
Winsor (2001) analyzed data from 6 submarine cruises that covered the central Arctic Basin from 1991 to 1997 and reported sea ice thickness almost constant.
Winsor, P. 2001. Arctic sea ice thickness remained constant during the 1990's. Geophysical Research Letters 28. 1039-1041.
Polyakov et al. (2002) used Russian landfast-ice data concludes no significant trend.
Polyakov, I.V., Alekseev, G.V., Bekryaev, R.V., Bhatt, U., Colony, R.L., Johnson, M.A., Karklin, V.P., Makshtas, A.P., Walsh, D. And Yulin A.V. 2002. Observationally based assessment of polar amplification of global warming. Geophysical Research Letters. 29: 10.1029/2001GL011111.
I might also point out other research by the scientist from the OP link.
Lazon et al. (2003) used data from radar altimeters aboard ERS-1 and 2 satellites to measure thickness of Arctic sea ice. There observations revealed, "an interannual variability in ice thichness at higher frequency, and of greater amplitude, than simulated by regional Arctic models," "The conclusion from numerical models that changes in the ice thickness occur on much longer timescales than changes in ice extent." Also showed, "Sea ice mass can change by up to 16% within one year." Laxon et al. concluded that "errors are present in current simulations of Arctic sea ice." "Until models properly reproduce the observed high-frequency, and thermodynamically driven, variability in sea ice thickness, simulations of both recent, and future, changes in Arctic ice cover will be open to question."
Lazon, S., Peacock, N. and Smith, D. 2003. High interannual variability of sea ice thickness in the Arctic region. Nature 425. 947-950.
#16
Posted 29 March 2013 - 04:18 AM
See also-
http://www.altenergy...nking#entry8360
http://www.altenergy...__hl__shrinking
And you may not trust the government, but this from NASA.
http://www.nasa.gov/...eaice-2012.html
From last year-
http://www.guardian....smallest-extent
http://www.altenergy...nking#entry8360
http://www.altenergy...__hl__shrinking
And you may not trust the government, but this from NASA.
http://www.nasa.gov/...eaice-2012.html
From last year-
http://www.guardian....smallest-extent
#17
Posted 25 April 2013 - 04:48 AM
And it's not just the Arctic.
"Glacial ice in the Peruvian Andes that took at least 1,600 years to form has melted in just 25 years,
scientists reported Thursday, the latest indication that the recent spike in global temperatures has thrown
the natural world out of balance.
Dr. Thompson and his team have expanded on previous research involving long-dead plants emerging
from the melting ice.
Chemical analysis showed them to be about 4,700 years old, proving that the ice cap had reached its smallest
extent in nearly five millenniums.
New York Times Source
Full paper here-
http://www.sciencema...science.1234210
"Glacial ice in the Peruvian Andes that took at least 1,600 years to form has melted in just 25 years,
scientists reported Thursday, the latest indication that the recent spike in global temperatures has thrown
the natural world out of balance.
Dr. Thompson and his team have expanded on previous research involving long-dead plants emerging
from the melting ice.
Chemical analysis showed them to be about 4,700 years old, proving that the ice cap had reached its smallest
extent in nearly five millenniums.
New York Times Source
Full paper here-
http://www.sciencema...science.1234210
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