Yeah, it’s a doomsday cult, and the scientists who proscribe to this have to constantly trot out more and more doom to keep the funding flowing
Sea-level rise from climate change could be worse than projected
Of the many threats from climate change, sea-level rise will most certainly be among the most impactful, making hundreds of thousands of square miles of coastline uninhabitable and potentially displacing over 100 million people worldwide by the end of the century. This threat is a top concern for national security experts because forced migration poses significant risks to international security and stability.
The magnitude of this threat depends heavily on how much the oceans rise in the coming decades. But because of the complex dynamics of massive ice sheets in Greenland and Antarctica, exact estimates remain elusive, ranging from just over a foot to several feet above current levels. That disparity is the difference between tens of millions of people forced from their homes or a much more unmanageable hundreds of millions displaced.
Now, a new paper published in the past week warns that if global warming continues at the current pace — reaching high-end warming projections for 2100 — then sea-level rise will probably surpass those projections.
Since the late 1800s, sea level has risen an average of about 10 inches globally, but the amount varies from region to region. Last century the largest contributor to the rise of the oceans was thermal expansion; simply put, warmer water expands. But now the melting of ice sheets, mainly from Greenland and Antarctica, constitutes a greater proportion, and that fraction will only grow.
Again, 10 inches would be exactly average for the Holocene. One would expect much more during a warm period
In fact, there is enough ice locked up in Greenland and Antarctica such that if all the ice melted it would cause a sea-level rise of 210 feet, a little taller than the Leaning Tower of Pisa. No scientist is expecting anything even close to that this century, but after the Earth surpasses a certain level of warming, ice sheets become less stable and less predictable, with potential tipping points coming into play.
Not expecting it, yet, let’s trot it out
While scientists and scientific periodicals tend to be conservative in their public projections of sea-level rise, scientists will often remark that they are concerned it may be much worse. When CBS News asked Englander what he thinks is a “realistic range” of sea-level rise by 2100, he said, “With the current global temperature level and rate of temperature increase I believe that we could get 5 to 10 feet before the end of this century.”
Read: Sea Level Could Be Worse Than Prognosticated Or Something »
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