Saturday, February 28, 2015
On Arctic Sea Ice Currently at a 30-Year Low
Yeah, that's correct, but even as a 4th grader can tell you, ice that's already floating doesn't increase sea level when it melts. It's land ice that counts and the major source of land ice on the planet, Antarctica, is actually experiencing a 30 HIGH....Yep, they're foiled again, folks.
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3 comments:
A fifth grader on the other hand,
would assert-
"The common misconception that floating ice won’t increase sea level when it melts occurs because the difference in density between fresh water and salt water is not taken into consideration. Archimedes’ Principle states that an object immersed in a fluid is buoyed up by a force equal to the weight of the fluid it displaces. However, because freshwater is not as dense as saltwater, freshwater actually has greater volume than an equivalent weight of saltwater. Thus, when freshwater ice melts in the ocean, it contributes a greater volume of melt water than it originally displaced."
Sea level is rising at about 7-8 inches a century and it started at this rate prior to the Industrial Revolution, so if there is a difference it has to be quite small. Let me guess, "Skeptical (as in, not skeptical) Science"?
And I'm sure that they have an "explanation" for Antarctica as well.
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