We all know it would be bad if the Antarctic ice cap melted completely. How bad? Let's do the math. (From 2020)
indeed climate change. There's no question that we have been putting a whole bunch of carbon dioxide into the atmosphere, and this carbon dioxide is changing the climate. And things are looking pretty bad. Maybe seriously bad.
So now we can visualize this ice sheet as a giant cylinder—maybe more like a hockey-puck-shaped cylinder. I can calculate the volume as the area of the base multiplied by the height. I'm going to keep the measurements in units of meters just to make things easier going forward.But this volume of ice doesn't translate directly to the same volume of sea level rise. Ice has a density of 920 kg/mO is super weird in that the density decreases when it freezes.
Note that this is just an approximation. I didn't take into account the loss of land surface area that gets flooded by the rising seas. This would actually decrease the sea level rise, as it would have a greater area to spread out. But even if you let the water spread over a complete Earth , it would be an increase of 62 meters . I guess I should also point out that I ignored the curvature of the Earth and assumed it was a flat plat .
Now, what if I replace this water block with a metal block of the exact same size? Well, there's still water outside the metal block. It should still push on it in the same way it interacted when there was a block of water. That means you still get the same upward buoyancy force that would be equal to the weight of the water block . In the case of this metal block, that buoyancy force would not be enough to keep it floating and it would sink—but that buoyancy force would still be there.
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