«Why would such a short -
term change in sea ice be attributed to CO2 which has been rising slowly for decades?»
Not exact matches
In the case of Arctic whales, the changes in sea ice might benefit their populations, at least in the short term: the loss and earlier retreat of sea ice opens up new habitats and, in some areas of the Arctic, has also led to an increase in food production and the length of their feeding seaso
In the case of Arctic whales, the
changes in sea ice might benefit their populations, at least in the short term: the loss and earlier retreat of sea ice opens up new habitats and, in some areas of the Arctic, has also led to an increase in food production and the length of their feeding seaso
in sea ice might benefit their populations, at least
in the short term: the loss and earlier retreat of sea ice opens up new habitats and, in some areas of the Arctic, has also led to an increase in food production and the length of their feeding seaso
in the short
term: the loss and earlier retreat of
sea ice opens up new habitats and,
in some areas of the Arctic, has also led to an increase in food production and the length of their feeding seaso
in some areas of the Arctic, has also led to an increase
in food production and the length of their feeding seaso
in food production and the length of their feeding season.
But «while the Arctic maximum is not as important as the seasonal minimum, the long -
term decline is a clear indicator of climate
change,» Walt Meier, a
sea ice researcher at the NASA Goddard Space Flight Center, said
in a statement.
Furthermore, we must understand how
changes in sea ice cover affect the feeding ecology of humpback whales and their competitors
in the short -
term and the dynamics of krill populations over the longer
term, particularly given the increasing pressure from commercial krill harvests [36].
«Earth is losing a huge amount of
ice to the ocean annually, and these new results will help us answer important questions
in terms of both
sea rise and how the planet's cold regions are responding to global
change,» said University of Colorado Boulder physics professor John Wahr, who helped lead the study.
«They were questions about how
ice sheets relate to
sea level,
changes in the ocean,
changes in the atmosphere and also
changes in weather and long -
term climate patterns,» says Dr Kennicutt.
In the long term, changes in sea level were of minor importance to rainfall patterns in north western Sumatra With the end of the last Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the world
In the long
term,
changes in sea level were of minor importance to rainfall patterns in north western Sumatra With the end of the last Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the world
in sea level were of minor importance to rainfall patterns
in north western Sumatra With the end of the last Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the world
in north western Sumatra With the end of the last
Ice Age came rising temperatures and melting polar ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the worl
Ice Age came rising temperatures and melting polar
ice sheets, which were accompanied by an increase in rainfall around Indonesia and many other regions of the worl
ice sheets, which were accompanied by an increase
in rainfall around Indonesia and many other regions of the world
in rainfall around Indonesia and many other regions of the world..
Only they can account for the non-linear behavior of the trajectory of the
sea ice evolution and put longer
term changes in the context of expected natural variability.
Natural climate variability of the Arctic atmosphere, the impact of Greenland and PBL stability
changes K. Dethloff *, A. Rinke *, W. Dorn *, D. Handorf *, J. H. Christensen ** * AWI Potsdam, ** DMI Copenhagen Unforced and forced long -
term model integrations from 500 to 1000 years with global coupled atmosphere - ocean -
sea -
ice models have been analysed
in order to find out whether the different models are able to simulate the North Atlantic Oscillation (NAO) similar to the real atmosphere.
The surprising fact (to me at least) that the difference
in global
sea ice between two single dates 30 years apart can
change so radically
in such a short space of time, implies that it is not a particularly good measure of long
term climate
change.
For is it not true that the IPCC is comprised of a wide range of scientist and they all must agree on the content of their reports, that some of said scientists are either on the payroll of oil - dependent nations or are politically conservative, and that the IPCC predictions have consistently underestimated the effects of climate
change in terms of temperature rise,
sea level rise,
ice cap diminution, etc..?
Mike's work, like that of previous award winners, is diverse, and includes pioneering and highly cited work
in time series analysis (an elegant use of Thomson's multitaper spectral analysis approach to detect spatiotemporal oscillations
in the climate record and methods for smoothing temporal data), decadal climate variability (the
term «Atlantic Multidecadal Oscillation» or «AMO» was coined by Mike
in an interview with Science's Richard Kerr about a paper he had published with Tom Delworth of GFDL showing evidence
in both climate model simulations and observational data for a 50 - 70 year oscillation
in the climate system; significantly Mike also published work with Kerry Emanuel
in 2006 showing that the AMO concept has been overstated as regards its role
in 20th century tropical Atlantic SST
changes, a finding recently reaffirmed by a study published
in Nature),
in showing how
changes in radiative forcing from volcanoes can affect ENSO,
in examining the role of solar variations
in explaining the pattern of the Medieval Climate Anomaly and Little
Ice Age, the relationship between the climate
changes of past centuries and phenomena such as Atlantic tropical cyclones and global
sea level, and even a bit of work
in atmospheric chemistry (an analysis of beryllium - 7 measurements).
My take is that the tug of war over what's causing today's telegenic heat waves, floods, tempests — and even Arctic
sea -
ice retreats — distracts from the high confidence scientists have
in the long -
term (but less sexy) picture: that more CO2 will lead to centuries of climate and coastal
changes with big consequences for a growing human population (for better and worse
in the short run, and likely mostly for the worse
in the long run).
I've been criticized by some environmentalists
in recent years for writing that the long -
term picture (more CO2 = warmer world = less
ice = higher
seas and lots of climatic and ecological
changes) is the only aspect of human - caused global warming that is solidly established, and that efforts to link dramatic weather - related events to the human influence on climate could backfire should nature wiggle the other way for awhile.
So here we are, still facing a clear long -
term picture (more CO2 = warming world = less
ice + higher
seas + lots of
changing climate patterns), but sufficient murk
in the short run to fuel the «green noise» and «destructive interference»
in climate discourse.
In terms of the future evolution of climate change: So much now depends on the what happens in the Arctic and whilst there remains uncertainty as to what is next in terms of the sea ice there is a consequent uncertainty in it's secondary impact
In terms of the future evolution of climate
change: So much now depends on the what happens
in the Arctic and whilst there remains uncertainty as to what is next in terms of the sea ice there is a consequent uncertainty in it's secondary impact
in the Arctic and whilst there remains uncertainty as to what is next
in terms of the sea ice there is a consequent uncertainty in it's secondary impact
in terms of the
sea ice there is a consequent uncertainty
in it's secondary impact
in it's secondary impacts.
Instead, to constrain the Charney sensitivity from the
ice age cycle you need to specifically extract out those long
term changes (
in ice sheets, vegetation,
sea level etc.) and then estimate the total radiative forcing including these
changes as forcing, not responses.
WMO will issue its full Statement on the State of the Climate
in 2017
in March which will provide a comprehensive overview of temperature variability and trends, high - impact events, and long -
term indicators of climate
change such as increasing carbon dioxide concentrations, Arctic and Antarctic
sea ice,
sea level rise and ocean acidification.
«The Earth is losing an incredible amount of
ice to the oceans annually, and these new results will help us answer important questions
in terms of both
sea rise and how the planet's cold regions are responding to global
change,» study researcher John Wahr, a professor of physics at the University of Colorado, said
in a press release issued by the Boulder campus.
As of this writing, there is observational and modeling evidence that: 1) both annular modes are sensitive to month - to - month and year - to - year variability
in the stratospheric flow (see section on Stratosphere / troposphere coupling, below); 2) both annular modes have exhibited long
term trends which may reflect the impact of stratospheric ozone depletion and / or increased greenhouse gases (see section on Climate
Change, below); and 3) the NAM responds to
changes in the distribution of
sea -
ice over the North Atlantic sector.
The criterion adopted here for having sufficiently removed the short
term variability
in order to get a stable estimation of the turning point (minimum
sea -
ice extent) of the annual cycle, was that there shall be only one
change of direction.
Though most of the CMIP5 models project a nearly
ice - free Arctic (
sea ice extent less than 1 × 106 km2 for at least 5 consecutive years) at the end of summer by 2100
in the RCP8.5 scenario (see Section 12.4.6.1), some show large
changes in the near
term as well.
While the climate
change signal is much clearer
in the northern latitudes - where longer -
term records show a relatively steady retreat of Arctic
sea ice - evidence of global warming's impact around Antarctica is also showing up
in the observations.
Sea ice thickness and spatial extent
change rapidly
in response to seasonal
changes and
in response to longer -
term climate
changes.
Animation of
changes in average September
sea ice extent from 1979 through 2016 — with noteworthy natural variability and a long -
term decline.
Long -
term changes in atmospheric circulation have resulted
in an increased amount of perennial
sea ice being exported through Fram Strait rather than being recirculated (e.g., Beaufort Gyre); this was what set up the 2007 record September minimum.
Actually Fielding's use of that graph is quite informative of how denialist arguments are framed — the selected bit of a selected graph (and don't mention the fastest warming region on the planet being left out of that data set), or the complete passing over of short
term variability vs longer
term trends, or the other measures and indicators of climate
change from ocean heat content and
sea levels to
changes in ice sheets and minimum
sea ice levels, or the passing over of issues like lag time between emissions and effects on temperatures... etc..
Climate
change is the long -
term average of a region's weather events lumped together.There are some effects of greenhouse gases and global warming: melting of
ice caps, rising
sea levels,
change in climatic patterns, spread diseases, economic consequences, increased droughts and heat waves.
«The observed
changes in sea ice on the Arctic Ocean,
in the mass of the Greenland
ice sheet and Arctic
ice caps and glaciers over the past 10 years are dramatic and represent an obvious departure from long -
term patterns,» says the report.
So are most of the other symptoms of climate
change, such as Arctic
sea ice retreat,
in terms of their impact.
As
sea ice declines, it becomes thinner, with less
ice build - up over multiple years, and therefore more vulnerable to further melting.15 Models that best match historical trends project northern waters that are virtually
ice - free by late summer by the 2030s.25, 26,12 Within the general downward trend
in sea ice, there will be time periods with both rapid
ice loss and temporary recovery, 27 making it challenging to predict short -
term changes in ice conditions.
The video shows so many different processes at different scales, from natural processes (annual
changes in snow cover and the Vatnajökull ash plume) to climate
change related
changes (e.g. the long
term decrease
in sea ice).
Mean
sea level (MSL) evolution has a direct impact on coastal areas and is a crucial index of climate
change since it reflects both the amount of heat added
in the ocean and the mass loss due to land
ice melt (e.g. IPCC, 2013; Dieng et al., 2017) Long -
term and inter-annual variations of the
sea level are observed at global and regional scales.
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in Deadly Heat Waves, Withered Harvests, & Melting Ice» (12/11/02) «Rising Temperatures & Falling Water Tables Raising Food Prices» (8/21/02) «Water Deficits Growing in Many Countries» (8/6/02) «World Turning to Bicycle for Mobility and Exercise» (7/17/02) «New York: Garbage Capital of the World» (4/17/02) «Earth's Ice Melting Faster Than Projected» (3/12/02) «World's Rangelands Deteriorating Under Mounting Pressure» (2/5/02) «World Wind Generating Capacity Jumps 31 Percent in 2001» (1/8/02) «This Year May be Second Warmest on Record» (12/18/01) «World Grain Harvest Falling Short by 54 Million Tons: Water Shortages Contributing to Shortfall» (11/21/01) «Rising Sea Level Forcing Evacuation of Island Country» (11/15/01) «Worsening Water Shortages Threaten China's Food Security» (10/4/01) «Wind Power: The Missing Link in the Bush Energy Plan» (5/31/01) «Dust Bowl Threatening China's Future» (5/23/01) «Paving the Planet: Cars and Crops Competing for Land» (2/14/01) «Obesity Epidemic Threatens Health in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate Change Has World Skating on Thin Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables in China» (5/2/00) Top of pa
in Deadly Heat Waves, Withered Harvests, & Melting
Ice» (12/11/02) «Rising Temperatures & Falling Water Tables Raising Food Prices» (8/21/02) «Water Deficits Growing
in Many Countries» (8/6/02) «World Turning to Bicycle for Mobility and Exercise» (7/17/02) «New York: Garbage Capital of the World» (4/17/02) «Earth's Ice Melting Faster Than Projected» (3/12/02) «World's Rangelands Deteriorating Under Mounting Pressure» (2/5/02) «World Wind Generating Capacity Jumps 31 Percent in 2001» (1/8/02) «This Year May be Second Warmest on Record» (12/18/01) «World Grain Harvest Falling Short by 54 Million Tons: Water Shortages Contributing to Shortfall» (11/21/01) «Rising Sea Level Forcing Evacuation of Island Country» (11/15/01) «Worsening Water Shortages Threaten China's Food Security» (10/4/01) «Wind Power: The Missing Link in the Bush Energy Plan» (5/31/01) «Dust Bowl Threatening China's Future» (5/23/01) «Paving the Planet: Cars and Crops Competing for Land» (2/14/01) «Obesity Epidemic Threatens Health in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate Change Has World Skating on Thin Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables in China» (5/2/00) Top of pa
in Many Countries» (8/6/02) «World Turning to Bicycle for Mobility and Exercise» (7/17/02) «New York: Garbage Capital of the World» (4/17/02) «Earth's
Ice Melting Faster Than Projected» (3/12/02) «World's Rangelands Deteriorating Under Mounting Pressure» (2/5/02) «World Wind Generating Capacity Jumps 31 Percent
in 2001» (1/8/02) «This Year May be Second Warmest on Record» (12/18/01) «World Grain Harvest Falling Short by 54 Million Tons: Water Shortages Contributing to Shortfall» (11/21/01) «Rising Sea Level Forcing Evacuation of Island Country» (11/15/01) «Worsening Water Shortages Threaten China's Food Security» (10/4/01) «Wind Power: The Missing Link in the Bush Energy Plan» (5/31/01) «Dust Bowl Threatening China's Future» (5/23/01) «Paving the Planet: Cars and Crops Competing for Land» (2/14/01) «Obesity Epidemic Threatens Health in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate Change Has World Skating on Thin Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables in China» (5/2/00) Top of pa
in 2001» (1/8/02) «This Year May be Second Warmest on Record» (12/18/01) «World Grain Harvest Falling Short by 54 Million Tons: Water Shortages Contributing to Shortfall» (11/21/01) «Rising
Sea Level Forcing Evacuation of Island Country» (11/15/01) «Worsening Water Shortages Threaten China's Food Security» (10/4/01) «Wind Power: The Missing Link
in the Bush Energy Plan» (5/31/01) «Dust Bowl Threatening China's Future» (5/23/01) «Paving the Planet: Cars and Crops Competing for Land» (2/14/01) «Obesity Epidemic Threatens Health in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate Change Has World Skating on Thin Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables in China» (5/2/00) Top of pa
in the Bush Energy Plan» (5/31/01) «Dust Bowl Threatening China's Future» (5/23/01) «Paving the Planet: Cars and Crops Competing for Land» (2/14/01) «Obesity Epidemic Threatens Health
in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate Change Has World Skating on Thin Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables in China» (5/2/00) Top of pa
in Exercise - Deprived Societies» (12/19/00) «HIV Epidemic Restructuring Africa's Population» (10/31/00) «Fish Farming May Overtake Cattle Ranching As a Food Source» (10/3/00) «OPEC Has World Over a Barrel Again» (9/8/00) «Climate
Change Has World Skating on Thin
Ice» (8/29/00) «The Rise and Fall of the Global Climate Coalition» (7/25/00) «HIV Epidemic Undermining sub-Saharan Africa» (7/18/00) «Population Growth and Hydrological Poverty» (6/21/00) «U.S. Farmers Double Cropping Corn And Wind Energy» (6/7/00) «World Kicking the Cigarette Habit» (5/10/00) «Falling Water Tables
in China» (5/2/00) Top of pa
in China» (5/2/00) Top of page
The record low Northern Hemisphere (NH) winter
sea ice maximum stemmed from a strong interannual surface anomaly
in the Pacific sector, but it would not have been reached without long -
term climate
change.
«Many of the events that made 2012 such an interesting year are part of the long -
term trends we see
in a
changing and varying climate — carbon levels are climbing,
sea levels are rising, Arctic
sea ice is melting, and our planet as a whole is becoming a warmer place,» said Acting NOAA Administrator Kathryn D. Sullivan, Ph.D. «This annual report is well - researched, well - respected, and well - used; it is a superb example of the timely, actionable climate information that people need from NOAA to help prepare for extremes
in our ever -
changing environment.»
Global Warming Theory «Completely Disconnected From the Observations» Extensive analysis of temperature trends
in the Arctic reveals that there has been no detectable long -
term change since the beginning of the 20th century, and thus predictions of a
sea ice - free Arctic
in the coming decades due to dramatically rising temperatures are not rooted
in observation.
These trends
in extreme weather events are accompanied by longer -
term changes as well, including surface and ocean temperature increase over recent decades, snow and
ice cover decrease and
sea level rise.
LONDON, 17 March, 2017 — Scientists have calculated that at least 30 % and perhaps one half of the decline
in Arctic summer
sea ice could be attributed to natural causes —
changes of ocean and atmospheric circulation that happen according to some long -
term cycle.
If one is interested
in long -
term trends
in sea ice or how it responds to
changing climate forcing, generally, it is best not to use an operational product, but rather one that is consistently produced and retroactively quality controlled.
RE: 4th Error -RCB- Poses an objection to the non-scientific
term catastrophic [NOTE: Scientific «consensus» is often being used & / or implied in standard climate - change discourse - Yet Consensus is a Political Term - NOT a Scientific Term]- HOWEVER - When Jim Hansen, the IPCC & Al Gore, et - al - go from predicting 450 — 500 ppm CO2 to 800 — 1000ppm by the end of the 21st century -LCB- said to the be highest atmospheric CO2 content in 20 — 30 Million YRS -RCB-; — & estimates for aver global temps by 21st century's end go from 2 * C to 6 * C to 10 * C; — & increased sea level estimates go from 10 - 20 cm to 50 - 60 cm to 1M — 2M -LCB- which would totally submerge the Maldives & partially so Bangladesh -RCB-; — predictions of the total melting of the Himalayan Ice caps by 2050, near total melting of Greenland's ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
term catastrophic [NOTE: Scientific «consensus» is often being used & / or implied
in standard climate -
change discourse - Yet Consensus is a Political
Term - NOT a Scientific Term]- HOWEVER - When Jim Hansen, the IPCC & Al Gore, et - al - go from predicting 450 — 500 ppm CO2 to 800 — 1000ppm by the end of the 21st century -LCB- said to the be highest atmospheric CO2 content in 20 — 30 Million YRS -RCB-; — & estimates for aver global temps by 21st century's end go from 2 * C to 6 * C to 10 * C; — & increased sea level estimates go from 10 - 20 cm to 50 - 60 cm to 1M — 2M -LCB- which would totally submerge the Maldives & partially so Bangladesh -RCB-; — predictions of the total melting of the Himalayan Ice caps by 2050, near total melting of Greenland's ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
Term - NOT a Scientific
Term]- HOWEVER - When Jim Hansen, the IPCC & Al Gore, et - al - go from predicting 450 — 500 ppm CO2 to 800 — 1000ppm by the end of the 21st century -LCB- said to the be highest atmospheric CO2 content in 20 — 30 Million YRS -RCB-; — & estimates for aver global temps by 21st century's end go from 2 * C to 6 * C to 10 * C; — & increased sea level estimates go from 10 - 20 cm to 50 - 60 cm to 1M — 2M -LCB- which would totally submerge the Maldives & partially so Bangladesh -RCB-; — predictions of the total melting of the Himalayan Ice caps by 2050, near total melting of Greenland's ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
Term]- HOWEVER - When Jim Hansen, the IPCC & Al Gore, et - al - go from predicting 450 — 500 ppm CO2 to 800 — 1000ppm by the end of the 21st century -LCB- said to the be highest atmospheric CO2 content
in 20 — 30 Million YRS -RCB-; — & estimates for aver global temps by 21st century's end go from 2 * C to 6 * C to 10 * C; — & increased
sea level estimates go from 10 - 20 cm to 50 - 60 cm to 1M — 2M -LCB- which would totally submerge the Maldives & partially so Bangladesh -RCB-; — predictions of the total melting of the Himalayan
Ice caps by 2050, near total melting of Greenland's ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
Ice caps by 2050, near total melting of Greenland's
ice sheet & partial melting of Antarctica's ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
ice sheet & partial melting of Antarctica's
ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to
ice sheet before the 21st century's end; — massive crop failures; — more intense & frequent hurricane -LCB- ala Katrina -RCB- for much longer seasonal durations, etc, etc, etc... — IMO That's Sounds pretty damned CATASTROPHIC to ME!
Finally, very little work has been done on the Antarctic
sea ice system
in terms of possible abrupt
change.
In short, aerosols can be linked to poorer air quality (both indoor and outdoor) and deaths because of this,
changing short -
term weather patterns, and long -
term climatic
changes contributing to melting of both Arctic
sea ice and glaciers.
Just for one example, if it turns out that, between melt of
sea ice and Greenland
ice, the North Atlantic Current slows or stops, we would expect to see fairly dramatically colder weather
in Europe for a while, even thought this condition could be directly linked to results produced by GW (though
in the long
term, the warming would, presumably eventually overtake the cooling from
change in ocean currents).
So, although NSIDC refers to additional satellite data
in developing our analysis, we primarily rely on passive - microwave data for Arctic
Sea Ice News & Analysis images and content, and for tracking long -
term change.
These data are also useful
in the study of unusual weather phenomena such as El Niño, the long -
term effects of deforestation on our rain forests, and
changes in the
sea -
ice masses around the polar regions.
«Floating
ice doesn't
change sea level at all,» Trenberth said, «but the consequences of this may well end up increasing
sea level quite substantially
in the long
term.»
«Global
sea ice» simply has no meaning
in terms of climate
change.
However, detecting acceleration is difficult because of (i) interannual variability
in GMSL largely driven by
changes in terrestrial water storage (TWS)(7 ⇓ — 9), (ii) decadal variability
in TWS (10), thermosteric
sea level, and
ice sheet mass loss (11) that might masquerade as a long -
term acceleration over a 25 - y record, (iii) episodic variability driven by large volcanic eruptions (12), and (iv) errors
in the altimeter data,
in particular, potential drifts
in the instruments over time (13).
I'd add that there is a lot of variability
in the
sea ice extent (or area, for that matter)-- it can and does
change quite capriciously
in the short
term.