when the ice is all gone the deeper cold Ocean currents will stop ,and the drag has gone with it ,also stopping the higher warm currents,This will affect coastal climates ,world wide ,almost instantly.

All aquatic flora and fauna will be affected,many dying off and others becoming invasive,

Right now
In Chiapas ,and Tabasco in Mexico .more then a million people became homeless overnight with water coming up to their roofs ,because of rains from super evaporation from the forests,this had never happened before.
Millions of animals died

In India 3000 people died because of super storms .
Right now the average death toll annually is 150.000 due to Global warming
a few years ago a whole bunch in France as well.

these figures are already out of date and are expected to double soon.

In Northern China millions of people are running for their lives because regular dust storms so far have buried 900 villages under the sand
and the whole of northern China is turning into a dessert.

The Sahara is growing by 7 kilometers a year all around the edges ,like a slow burning fire shriveling up their neighbors

In the Kalahari huge rivers have dried up and thousand of species are gone due to their habitats disappearing

when the north pole is gone , you may have polar bears soon in America ,looking for a home ,as the bollweavel sings.

so that is the good news you can add another specie to your list ,instead of deleting hundreds that are disappearing

the biggest changes are invisible at micro biotic levels species are becoming extinct ,others are multiplying ,this affects the insect populations that follow ,and changes in that affect all that follows in the food chains ,All life is interrelated of both flora and fauna,

And we as being on the top of the food chain are always the last to know

So Global warming has its toll there are incidents all over the world ,

If the melt happens slowly then you would not likely see any catastrophic changes in ocean circulation.

Incidently, the ice cover in antarctica is currently increasing as are some glaciers in greenland. This suggests that a sudden melt is not likely to happen anytime soon.

Also be sure to ask in your essay:
The THEORY of GW is based on the REFLECTIVITY Theory of CO2 gases in higher atmospheres reflecting heat back to earth.
Ask why that same CO2 gas is not REFLECTING the SUN’S heat back into space away from Earth??
That should confound the most strident supporter of the AWG Theory.

People say that evidence from ice cores proves that rising CO2 causes temperature increases over a period of 650,000 years. Actually, that is misleading, the rises in CO2 lagged behind the temperature increases by 800–2,000 years.

Polar bears are not dying off by the hundred due to polar ice caps melting. Actually, only 4 have died due to drowning and that was due to a particularly violent storm.

"Global warming could stop the Gulf Stream, throwing Europe into an ice age." This is a scientific impossibility.

Greenland will not melt for a millennia.

Antarctic ice covering is in fact increasing.

Sea levels are only going to rise about 40 centimeters in the next hundred years.

As said by John Coleman (Creator of the Weather Channel):

It is the greatest scam in history. I am amazed, appalled and highly offended by it. Global Warming; It is a SCAM.

Some dastardly scientists with environmental and political motives manipulated long term scientific data back in the late 1990′s to create an allusion of rapid global warming. Other scientists of the same environmental wacko type jumped into the circle to support and broaden the "research" to further enhance the totally slanted, bogus global warming claims. Their friends in government steered huge research grants their way to keep the movement going. Soon they claimed to be a consensus.

Environmental extremist, notable politicians among them then teamed up with movie, media and other liberal, environmentalist journalists to create this wild "scientific" scenario of the civilization threatening environmental consequences from Global Warming unless we adhere to their radical agenda.

Now their ridicules manipulated science has been accepted as fact and become a cornerstone issue for CNN, CBS, NBC, the Democratic Political Party, the Governor of California, school teachers and, in many cases, well informed but very gullible environmental conscientious citizens. Only one reporter at ABC has been allowed to counter the Global Warming frenzy with one 15 minutes documentary segment.

I do not oppose environmentalism. I do not oppose the political positions of either party.

However, Global Warming, i.e. Climate Change, is not about environmentalism or politics. It is not a religion. It is not something you "believe in." It is science; the science of meteorology. This is my field of life-long expertise. And I am telling you Global Warming is a nonevent, a manufactured crisis and a total scam. I say this knowing you probably won’t believe me, a mere TV weatherman, challenging a Nobel Prize, Academy Award and Emmy Award winning former Vice President of United States. So be it.

I suspect you might like to say to me, "John, look the research that supports the case for global warming was done by research scientists; people with PH D’s in Meteorology. They are employed by major universities and important research institutions. Their work has been reviewed by other scientists with PH D’s. They have to know a lot more about it than you do. Come on, John, get with it. The experts say our pollution has created an strong and increasing greenhouse effect and a rapid, out of control global warming is underway that will sky rocket temperatures, destroy agriculture, melt the ice caps, flood the coastlines and end life as we know it. How can you dissent from this crisis? You must be a bit nutty.

Allow me, please, to explain how I think this all came about. Our universities have become somewhat isolated from the rest of us. There is a culture and attitudes and values and pressures on campus that are very different. I know this group well. My father and my older brother were both PHD-University types. I was raised in the university culture. Any person who spends a decade at a university obtaining a PHD in Meteorology and become a research scientist, more likely than not, becomes a part of that single minded culture. They all look askance at the rest of us, certain of their superiority. They respect government and disrespect business, particularly big business. They are environmentalists above all else.

And, there is something else. These scientists know that if they do research and results are in no way alarming, their research will gather dust on the shelf and their research careers will languish. But if they do research that sounds alarms, they will become well known and respected and receive scholarly awards and, very importantly, more research dollars will come flooding their way.

So when these researchers did climate change studies in the late 90′s they were eager to produce findings that would be important and be widely noticed and trigger more research funding. It was easy for them to manipulate the data to come up with the results they wanted to make headlines and at the same time drive their environmental agendas. Then their like minded PHD colleagues reviewed their work and hastened to endorse it without question.

There were a few who didn’t fit the mold. They did ask questions and raised objections. They did research with contradictory results. The environmental elitists berated them brushed their studies aside.

I have learned since the Ice Age is coming scare in the 1970′s to always be a skeptic about research. In the case of global warming, I didn’t accept media accounts. Instead I read dozens of the scientific papers. I have talked with numerous scientists. I have studied. I have thought about it. I know I am correct when I assure you there is no run away climate change. The impact of humans on climate is not catastrophic. Our planet is not in peril. It is all a scam, the result of bad science.

I am not alone in this assessment. There are hundreds of other meteorologists, many of them PH D’s, who are as certain as I am that this global warming frenzy is based on bad science and is not valid.

I am incensed by the incredible media glamour, the politically correct silliness and rude dismal of counter arguments by the high priest of Global Warming.

In time, a decade or two, the outrageous scam will be obvious. As the temperature rises, polar ice cap melting, coastal flooding and super storm pattern all fail to occur as predicted everyone will come to realize we have been duped.

The sky is not falling. And, natural cycles and drifts in climate are as much if not more responsible for any climate changes underway.

I strongly believe that the next twenty years are equally as likely to see a cooling trend as they are to see a warming trend.