How are record low temps and record ice levels in the southern hemisphere caused by global warming?

Question

http://www.dailytech.com/Antarctic+Ice+Levels+Hit+Record+High/article8871.htm

Answer 1

Your link refers to sea ice and an increase in sea ice in a warming earth at first doesn't sound logical, but in fact it's true. You can have more sea ice because of an increase of surface temperature results in a decrease in thermal gradient which reduces over turning of the water and decreased surface salinity which raises the freezing point of the water. Here's where the explanation is found.
http://ams.allenpress.com/perlserv/?request=get-pdf&doi=10.1175%2FJCLI4136.1

Answer 2

Bush sent a big freezer down there to make the place colder and wired it by under sea cables to an oil company in Texas that has an electric generator paid for by a tax break for the rich. The huge freezer was put in Antarctica to fool people into thinking the earth was cooling, and since the oil that was burned to run it was burned in Texas and caused warming there so ice could build up in Antarctica. The new ice is evidence of an evil Bush scheme that Rove has been working on since he left the White House. Notice that the ice started building when Rove left. Rove is dangerous. He works fast, and only Al Gore can save us from him.

Answer 3

properly, the lunatic concept of anthropogenic international warming by no potential had any validity interior the 1st place. the relationship between CO2 and infrared radiation absorption isn't LINEAR, that's LOGARITHMIC. that's to declare, over approximately a hundred ppm of CO2, the warming consequence of each and every further unit of CO2 is approximately one-0.5 the previous unit. consequently, the performance of CO2 as a greenhouse gas above a hundred ppm drops at as quickly as, drawing near a shrink of 0. certainly, that's like this: CO2 is an insulator. in case you have been to place only somewhat of insulation in a house devoid of any, the 1st bit you upload will make a huge distinction. in spite of if, as you place further and further in, the end results of each and every further unit drops at as quickly as. Very quickly, you get to the factor the place including greater insulation does not make any important distinction interior the owner of a house's heating invoice. same is going for CO2 and international warming. So, this entire element is unquestionably a great fraud. The stated time table of the human beings promoting the international warming hysteria is to shrink the international's inhabitants to under 2 billion human beings as without delay as achievable by utilising inducing a fall down interior the flexibility intensity of the international financial gadget, consequently inflicting a thermodynamic breakdown of the financial gadget. In different words, what the international heaters are advocating (knowingly or no longer) isn't a "greenhouse gas alleviation coverage," that's a genocide coverage. that's extremely-Hitlerian stuff, human beings. Al Gore, Prince Philip, et al. could desire to right away be arrested, pending quotes of fraud, criminal conspiracy, tried mass homicide, and crimes against humanity.

Answer 4

The slight warming that is taking place right now is going to cause comparatively drastic climate changes.

Some regions are going to get colder for a while, maybe even a few years, but the over all global trend in the long run is going to be warmer.

But that's not the point. The problem is the drastic climate changes that result from the small increase in temperature. And all the repercussions that result from the climate changes.

Answer 5

First--overall temperatures in th eSouthern hemisphere--inclding Antartica--are rising; they are not "record lows." Second, ice levels are falling overall as the ice around the coastal areas o fAntartica melts.

The "low temps and record ice" the skeptics keep harping on are a localized phenomenon. whether this has anything to do with changes in climate induced by global warming isn't clear.

But again--this is a LOCALIZED pattern covering about 1% of the area of the Southern hemisphere. Global warming refers to OVERALL trends, not to local conditions.

So--this, like all of the est o fth edeniers BS-is junk science.

Answer 6

What record low temps and what record ice levels? Please provide a link to real data if you want a real answer.

But in general, global warming is a worldwide year-long average temperature increase. It doesn't mean everyplace will be hotter every day of every year. Some regions are expected to warm up a lot and some very little (or even some cooling). The map linked below shows which regions have had the largest temperature increases and which have actually cooled somewhat.

The southern hemisphere hasn't experienced the same level of warming as the northern hemisphere partly because there's far less land mass (ocean water absorbs a lot of heat) and far less population generating CO2 emissions. The ocean and atmospheric current directions are also a big factor.

Answer 7

"Stronger westerly winds act as a kind of wall that isolates cold Antarctic air from warmer air in the lower latitudes, which leads to cooler temperatures":

Study Shows Potential for Antarctic Climate Change - Oct. 6, 2004
http://www.giss.nasa.gov/research/news/20041006/

While Antarctica has mostly cooled over the last 30 years, the trend is likely to rapidly reverse, according to a computer model study by NASA researchers. The study indicates the South Polar Region is expected to warm during the next 50 years.

Findings from the study, conducted by researchers Drew Shindell and Gavin Schmidt of NASA's Goddard Institute of Space Studies (GISS), New York, appeared in the Geophysical Research Letters. Shindell and Schmidt found depleted ozone levels and greenhouse gases are contributing to cooler South Pole temperatures.

Low ozone levels in the stratosphere and increasing greenhouse gases promote a positive phase of a shifting atmospheric climate pattern in the Southern Hemisphere, called the Southern Annular Mode (SAM). A positive SAM isolates colder air in the Antarctic interior.

In the coming decades, ozone levels are expected to recover due to international treaties that banned ozone-depleting chemicals. Higher ozone in the stratosphere protects Earth's surface from harmful ultraviolet radiation. The study found higher ozone levels might have a reverse impact on the SAM, promoting a warming, negative phase. In this way, the effects of ozone and greenhouse gases on the SAM may cancel each other out in the future. This could nullify the SAM's affects and cause Antarctica to warm.

"Antarctica has been cooling, and one could argue some regions could escape warming, but this study finds this is not very likely," Shindell said. "Global warming is expected to dominate in future trends."

The SAM, similar to the Arctic Oscillation or Northern Annular Mode in the Northern Hemisphere, is a seesaw in atmospheric pressure between the pole and the lower latitudes over the Southern Ocean and the tip of South America.

These pressure shifts between positive and negative phases speed-up and slow down the westerly winds that encircle Antarctica. Since the late 1960s, the SAM has more and more favored its positive phase, leading to stronger westerly winds. These stronger westerly winds act as a kind of wall that isolates cold Antarctic air from warmer air in the lower latitudes, which leads to cooler temperatures.

Answer 8

Rising ocean water temps will mean more evaporation,and that will fall as rain or snow in increased amounts. The changing climate will cause extreme fluctuations of weather. Those extremes will become the norm! Every year for the last 10 years ,here in the Pacific N.W.,we've had a "100 Year Storm",this year we had what the weather service called a :1,000 Year Storm" ! What's coming next year? A storm bigger than this one? Probably, based on the news today on the climate.

Answer 9

The Great Green Hoax

Answer 10

Because everything from the 70's is coming back :-) Bellbottoms, mini-skirts and now...
GLOBAL COOLING!!! (just as they predicted waay back then) Groooovy

BTW, what is the ideal temperature for the planet? Seriously, folks can't even agree on a thermostat setting in a room... let alone the planet.

Answer 11

This contradicts information I have seen. Could you please give your reference? Thanks

The situation appears to be complex. On Sea Ice in the Antarctica there is limited data prior to the availability of satellite. I have no idea what the author of the article means when he refers to 'since record keeping began'. If he refers to reconstructions using records from whaling shops then I think he is just wrong. If he refers to satellite information then he is only talking about a short period of time.
The size of glaciers in Antarctica is currently increasing. This is consistent with the work which predicts increase of size as the ice softens but what is needed is estimation of the mass. There appears to be near balance in East Antarctica and loss in West Antarctica including the Antarctic peninsula.
Thank you for asking the question - it has given me a challenge to research the answer.