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“Scientific research indicates sea levels worldwide have been rising at a rate of 0.14 inches (3.5 millimeters) per year since the early 1990s. The trend, linked to global warming, puts thousands of coastal cities, like Venice, Italy, (seen here during a historic flood in 2008), and even whole islands at risk of being claimed by the ocean”
“The rise in sea levels is linked to three primary factors:
When water heats up, it expands
Melting of glaciers and polar ice caps:
Persistently higher temperatures caused by global warming have led to greater-than-average summer melting as well as diminished snowfall due to later winters and earlier springs.
Ice loss from Greenland and West Antarctica:
Scientists also believe meltwater from above and seawater from below is seeping beneath Greenland's and West Antarctica's ice sheets, effectively lubricating ice streams and causing them to move more quickly into the sea. Moreover, higher sea temperatures are causing the massive ice shelves that extend out from Antarctica to melt from below, weaken, and break off.
How High Will It Go?
Most predictions say the warming of the planet will continue and likely will accelerate. Oceans will likely continue to rise as well, but predicting the amount is an inexact science. A recent study says we can expect the oceans to rise between 2.5 and 6.5 feet (0.8 and 2 meters) by 2100, enough to swamp many of the cities along the U.S. East Coast. More dire estimates, including a complete meltdown of the Greenland ice sheet, push sea level rise to 23 feet (7 meters), enough to submerge London and Los Angeles.””
If all the ice on land was to melt, then sea level would rise about 220 feet. Most of this would be from Antarctica (200 ft), where the ice is actually on land and out of the water. But in the Arctic, most of the ice is floating on the ocean. If you have a glass of ice water that is completely full, will the water overflow when the ice melts? No, because ice displaces its volume, so as it melts, it doesn't cause a change in the water level.
reply to post by Teye22
Thermal expansion: When water heats up, it expands
The greatest expansion (dramatically greater) is when liquid water changes state to a solid (ice).
***Although it says 20 years in the title, in the video, it mentions centuries. This is very little time to react nonetheless.
How High Will It Go?
future generations will have to face this situation.
No one can prevent this, but there could be ways to prepare for it though, since we do have a few years to prepare (I say a few since no one really know how fast this could escalate).
building must begin soon or it will be too little too late.
houses/cities would simply “go with the flow”. , …Maybe they would be anchored in but that could be troublesome with strong currents Tsunamis
Do you have bright and innovative ideas to help prepare for this?
Typhoon Haiyan exposes different perspectives on a warming planet
In the nine days I have just spent in the Philippines disaster zone, it was remarkable to see how different the perceptions are about the likely consequences of a warming planet.
It is not just the local media that consistently report mainstream science as, well, mainstream science, rather than alarmist conspiracy.
Ordinary people genuinely fear that the climate is changing and they're worried about what it means for their children.
In fact, none of the many storm survivors I met was simply alarmed by climate change. They were actually terrified of the prospect of more storms like Haiyan.