Do you mean the difference between the density of salt water and fresh water or the density of ice and ocean water? The first matters, but the effect is so small that it is negligible (3% of the volume of water displaced by the ice). The second does not.
The first, of course.
Simple things like the current climactic changes are at a rate higher than anything we've measured short of the dino asteroid and that human produced greenhouse gases are playing a major role?
Okay, how about the impact of thermal expansion on sea water that is heated by 1C?Yes, it is simple: the difference in the volume does not matter. I guess, it is safe to put you in the group who does not understand basic physics.
I'd say that, everything else equal, increase in air temperature will lead to more water in the air, and, thus, lower sea level. Of course, it is "in addition to all other factors that can affect the sea level"
Actual studies show that 1C will raise seal levels by around 20 cm and evaporation rate changes for 1C are negligible. The extreme high end of predictions that include melting land ice estimate up to 2m of which roughly half is thermal expansion
That's twice you're wrong on your own simple science question!
Did you see "everything equal" in my statement? That increase will come from ice melting in Antarctica.
I am sure that the reported did not understand the paper because 4cm contradicts the basic math. There is a 3% difference between the salt water and fresh water density and the thickness of ice on Arctic Ocean is between 2m and 3m. So, if thewater wolud have stayed in Arctic Ocean, its level (after melting), would have increased by between 6cm and 9cm (I guess, the ice thickness is a bit less in the southern part, and this is where this 4cm in the paper came from). However, the area of Arctic Ocean is only 4% of the are of all 4 oceans (and I do not even count the area of internal water reservoirs), so, we are talking about 2mm to 3mm sea level increase. So, yes, you are right, the answer should be "less than 5mm", or, as I said, negligible. But, of cause, I did not mention the AntarcticThat's twice you're wrong on your own simple science question!
You've really outdone yourself.
Science says the difference between fresh water ice and salt water ocean means about 4cm rise in ocean levels when the Arctic Ocean ice melts.
Does sea ice melt raise sea level? | National Snow and Ice Data Center
Sea ice melt is not a significant contributor to sea level rise, but its contribution is not nothing, either. Sea ice is composed mostly of fresh water, which is less dense than salty ocean water. Consequently, sea ice melt produces water that takes up more volume than an equivalent weight of...nsidc.org
