If the icecaps melt at the speed at which they are now we will have record ice mass in the Antarctic, the Antarctic ice has become 50% thicker since 2012 so if they grow at that rate we will have record ice soon.
11/28/2012 is when Ice started to accumulate and some Glaciers still exist and are building. I've started Global Ocean's Operation last week, by asking Coastal countries to lower their Rivers that tie-in with oceans 40 feet deeper by useing cargo ships and putting steel boxes in each cargo hold with hooks for cranes. Also useing suction equiptment of each side of ship and extracting sand from river floors and straining sand and putting sand on beaches of coastal property. This is phase 1. Phase 4 or phase 5 I will give my freshwater solution to everyone so all will be able to make millions of gallons of freshwater every 75 days, like I did when I helped replenish a river for 7 or 8 countries many years ago and Phase 6= I will show everyone on earth how to grow 4 times more food per farm, per year without expanding each farm. Global Command
So far - the water levels of the great lakes are going down and the Oceans are the same - don't listen to junk science
Most of the world's freshwater resources are fed by glaciers and snow packs on land. Most of those will be gone in 50 years. They're already at critically low levels in much of the developing world, where the governments cannot afford desalination plants. There is currently a major drought disrupting agriculture in the middle east, and it's partially to blame for increase in instability and war: Farmers are out of work, move to cities for work that doesn't exist, and join extremist militias for their food and water.
Things will only get worse. In the next 50 years rising sea level will begin in inundate the mouths of most of the worlds major river systems. A lot of the world's agriculture is in those river deltas, which will be flooded and rendered useless by the salt water. Rising sea levels will force migrations inland, to regions faced with increasing water stress.
The oceans will continue to warm, leading to the inevitable collapse of cold water dependent food chains, causing the depletion of already over fished oceanic fisheries. Cold water holds more oxygen than warm water, which allows it to host large populations of plankton eating fish. Low oxygen warm waters, however, are really only suitable for invertebrates. The waters of the south China sea and sea of Japan are perfect examples of this, and are being taken over by nightmarish swarms of giant jellyfish.
Get the picture? We're screwed!
Trevor is wrong if all the ice in the world melted the sea level rise would be 65meters, expansion from oceans warming would only a few meters, dont forget ice shrinks when it melts.
Maldive water problems have nothing to do with sea level rise, it is because of the huge influx of tourists, and the construction of tourist facilities.
Melting of glaciers is exaggerated, many glaciers are recovering, many glaciers have suffered because of deforestation of their lower slopes reducing precipitation, Kilimanjaro and the himalayas are noted examples, although parts of the Himalayas are actually growing despite this.
Global sea ice has recovered and is now at average extent for the 1979 to 2012 period.
Coral atolls are not in danger of sea level rise, as corals can grow a lot faster than the present 1.7mm rise
4 And Jesus answered and said unto them, Take heed that no man deceive you.
5 For many shall come in my name, saying, I am Christ; and shall deceive many.
6 And ye shall hear of wars and rumours of wars: see that ye be not troubled: for all these things must come to pass, but the end is not yet.
7 For nation shall rise against nation, and kingdom against kingdom: and there shall be famines, and pestilences, and earthquakes, in divers places.
8 All these are the beginning of sorrows.
9 Then shall they deliver you up to be afflicted, and shall kill you: and ye shall be hated of all nations for my name's sake.
Fresh water would be more seasonal as most of our fresh water are from snow pack melt including land glaciers.
it will melt into the river and cause the water to become polar ice and it could cause a national crisis.
The melting of the glaciers in Greenland and Antarctica will have little impact to the world’s water resources, because, even though they are the largest reservoirs of fresh water in the world, they are not very accessible.
But millions of people in Europe, North America and Asia rely on glacier water from the Rockies, the Alps and the Himalayas. When these glacier disappear, many rivers in these regions will become intermittent.
If the glaciers continued to melt, then the world's oceans would become less salty because glaciers contain fresh water. And when the glaciers melt, their fresh water content will be dumped into the oceans, thus making the oceans less salty.
If all of the glaciers melted, then the sea levels of the oceans would rise by about 60-70 meters. So many low-lying coastal areas will be flooded by sea water. Florida, New York, New Orleans, Shanghai, Tokyo and other cities on the coastline would be flooded if the glaciers melted.
The glaciers melting would have no influence on the world's water supply other than making the oceans a bit less salty.
water resources meaning (both freshwater and oceans)?
There are numerous effects of climate change and melting Polar ice on the water supply, here are a few of them.
? The melting of the Polar ice causes sea-levels to rise, averaged over the last 30 years it’s around 1.6mm per year globally averaged. The same level of rise is being caused as the oceans warm and expand. It’s been increasing in recent years but it’s still only a few mm per year. For most people this will have no effect on water supplies, it will affect those who rely on ground water sources that are at or very close to sea-level (see below).
? If all of the Polar ice were to melt then sea-levels would rise by 80.32 metres (260 feet). This would take thousands of years. In order for all the ice to melt it would need to warm significantly, this would cause further expansion of the oceans. Total sea-level rise would be in the order of 150m to 200m, (500 to 700 feet) depending just how warm it got. Globally, about 10% of what is now land would be underwater. If it ever did warm by this much then the Arctic would thaw, this would make some new land available (most of it would be peat-bog, so not much use for anything other than cutting peat).
? Low lying islands are already facing a problem from water contamination, places like the Maldives etc. The Maldives is very low-lying, the lowest country in the world. The highest point is only 2.4m (8 feet) above sea-level. Rising seas are causing salination of the groundwater in some places. It’s also killing the trees and plants near the shoreline.
? Outside of the Polar regions, half the world’s glaciers have already melted, 95% of those that remain are melting. Glacial meltwater feeds several of the world’s largest rivers including the Ganges, Brahmaputra, Yellow and Yangtze. Many millions of people rely on these rivers for their water. Irrigation systems are failing, land and villages are being abandonned.
? In parts of the Andes all the glaciers have melted. On Chalon Sombrero (a mountain) the villages have painted their mountain white in order to reflect the Sun and cause it to cool down again so that the glaciers will return. It’s early days but appears to be working.
? One consequence of global warming has been a very significant increase in the number of floods, this can wash contaminants into water supplies; a particular problem in Asia and Africa where potable supplies aren’t necessarily well protected in the first place.
? One consequence of melting ice in the Polar Regions, particularly the Arctic, is that there’s the potential for the cold, fresh water to impact on the movement of warm, saltwater ocean currents. These currents have a significant effect on the weather in some parts of the world. If for example, the Gulf Stream were to fail, and this is only a hypothesis, then parts of western Europe would return to ice-age conditions and half a billion people would need to relocate.
? The melting of Arctic ice is exposing the darker sea-water beneath it. The darker surface is able to absorb more heat energy from the Sun and this is amplifying the level of warming, so much so that the Arctic is warming faster than anywhere else. This increase in heat is causing disruption to the Arctic weather patterns, in turn these impact upon surrounding weather patterns. Events such as the coldwave in the US last winter were caused by a disruption in Arctic weather. This brought large deposits of snow to some regions which provided more water for the local supplies.
There’s many other effects, hope this is enough for you.
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EDIT: TO KANO
You should know by now that my answers are based on fact. If you accuse me of lying you’ll end up making a fool of yourself and demonstrating your own ignorance.
You said my figure of 80.32 metres was wrong. It’s from the USGS. Do I now get an apology for your false accusations?
http://pubs.usgs.gov/fs/fs2-00/
You seem to think I stated sea-levels would rise by 150m to 200m from thermal expansion. Read what I actually said. I stated that melting Polar ice would cause sea-levels to rise, so too would thermal expansion and that TOTAL sea-level rise would be in the order of 150m to 200m, therefore thermal expansion adds 70m to 120m.
You can either look to history to see how much oceans expand when they warm or you can calculate it mathematically. History would suggest that if the world warmed to the point where all ice melted then thermal expansion would add 80m to 150m, mathematically (which is how I calculated it, and you can too), the figures are a bit less. The range is a consequence of there being no set temperature at which all the ice would melt, a variable time horizon and the uncertainties regarding when equilibrium between atmosphere and ocean would be reached (simple example: which causes most melting and/or most thermal expansion: a 10°C rise in temps for 5,000 years or a 5°C rise in temps for 10,000 years).
Before accusing other people of lying it might help to get your own facts straight. I proved I was correct with the figure of 80.32 metres, let’s see you prove that 65m is correct. You can’t, jut like you can’t back up several of the statements in your answer. Do you want me to go through your answer and use more facts to disprove you.
I don't think ice sheets melting are even close to being the most pressing water resources problem, especially potable water.
However, regionally glaciers may be an important source of water so local authorities may need to take action like building reservoirs.
it will remain the same
if the glaciers continue to melt and the icesheets continue to break off,its effect can be disastrous to the whole world,water level ll rise and as a result floods ll occur more and many low lying areas ll go permanently under water the areas which are vulnerable to tese consequences r specially coastal regions,islands,delta regions etc.
Globally this is a trivial effect. Regionally (e.g., Himalayas) it is likely to become quite significant.
The effects of ice-melt on local ecosystems and on worldwide sea levels are more important, especially the latter, though it will also come much more slowly.
