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[–] 4 pts (edited )

Floating ice breaking off = glacier calving.

Glaciers are literally rivers of ice, they flow.

30 million tons (30,000,000,000kg) of ice per hour = ~8.3 m3 /s equivalent of water.

This is effectively for all glaciers flowing off of Greenland (equivalent to all combined river flow).

Just for comparison, flow rates of some individual rivers: - Amazon: 224,000 m3 /s - Danube: 6,546 m3 /s - Niagara: 5,885 m3 /s

The Greenland Ice Sheet is about 2.9 million cubic kilometers, assuming 1 ton per m3, that would be 2,900,000 mega tons. Losing 30 mega tons per hour is losing 0.001% per hour. However, this "loss" figure almost certainly does not account for ice mass gain due to snow, so you need to look at net ice mass. This is called Surface Mass Balance (SMB). The Greenland Ice Sheet gains a significant amount of ice through snow fall each year, and currently loses a little more than it gains. This is because we are coming out of the Little Ice Age, where the size of the ice sheets increased substantially. This has been compounded by a warm phase of the AMO (Atlantic Multidecadal Oscillation), that has recently peaked and will soon be moving into a cooling phase.

Basically, looking at the calving, they are only looking at one side of the equation. This is a common tactic of the climate alarmists. Can you imagine if they tried the same thing with rivers? Oh my God! The Amazon Rainforest is LOSING 806,400,000,000,000 Liters of water per hour (224GL/s * 3600)!!!! At this rate, the Amazon will be a desert by mid next year!! Won't somebody think of the children!


Other things to note....

The sea ice that is calving off is almost always already floating in the Ocean. This means that it will have little to no effect on sea levels, the ice is already displacing its mass in the Ocean. These fucking morons must worry about their drinks overflowing when the ice in them melts or something.

The weather in Greenland has zero effect on the melting of the ice sheet. The temperatures there are so seldom above freezing that it makes no difference, a warming of 1C or even 2C, when the temperature is -30C is irrelevant. Sometimes, during specific weather patterns, they get warm spells that cause surface melting, but that has little to no effect on the overall mass balance. Ablation of ice due to low humidity and high winds would cause more loss than that. What controls the melting of the sea ice surrounding Greenland is Ocean temperature. That is controlled by the Ocean currents, primarily the Atlantic Meridional Overturning Circulation (AMOC). This current waxes and wanes in a cycle that lasts ~60-80 years (the Atlantic Multidecadal Oscillation), which brings warmer or cooler water to the coast of Greenland.