The headline in the Arizona Daily Star reads: “UA study: Warming oceans will also speed ice melting.” The press release from the University of Arizona reads: “Warming ocean layers will undermine polar ice sheets.”
What is really interesting is the first two paragraphs of the press release:
Warming of the ocean’s subsurface layers will melt underwater portions of the Greenland and Antarctic ice sheets faster than previously thought, according to new University of Arizona-led research. Such melting would increase the sea level more than already projected. [emphasis added.]
The research, based on 19 state-of-the-art climate models, proposes a new mechanism by which global warming will accelerate the melting of the great ice sheets during this century and the next.
So what is wrong with this? When water freezes, it expands, that is why ice floats; ice is less dense than an equal weight of liquid water. The researchers claim that melting of underwater ice will increase sea level. But the underwater ice is already displacing a certain volume of water. When the underwater ice melts, the resulting water will occupy a smaller volume than the ice did. How can that cause sea level to increase?
Will scientists clinging to the orthodoxy of the global warming religion say anything to get research grants?
Other research questions the basic premise of the UofA research: is the ocean warming?