Can we just arbitrarily dismiss underwater volcanoes as a source of heat in the Arctic?

For some reason, Andy Revkin seems more convinced that distant cell phone chargers might be melting Arctic ice, rather than solar fluctuations or even volcanoes. One brief rebuttal is here:

Whats Really Up With North Pole Sea Ice? - Dot Earth - Climate Change and Sustainability - New York Times Blog

Andy, the top Lomonosov Ridge (which passes under the North Pole) is as close to 954m to the surface.

2nd, there is a recent estimate of almost 3 million underwater volcanoes...

Please stop dismissing underwater volcanoes as a source of heat in the Arctic. You look silly.

It seems those volcanoes do throw off some heat:

They returned with images and data showing that red-hot magma has been rising from deep inside the earth and blown the tops off dozens of submarine volcanoes, four kilometres below the ice. "Jets or fountains of material were probably blasted one, maybe even two, kilometres up into the water," says geophysicist Robert Sohn of the Woods Hole Oceanographic Institution, who led the expedition.

He and his colleagues, who describe the underwater scene in the journal Nature today, estimate that exploding mixtures of lava and gas flew out of the volcanoes at speeds of more than 500 metres a second. When the material hit the frigid seawater, Sohn says it would have formed huge clouds that rained volcanic material down on the sea floor, creating the carpet of glassy shards and bits that can be seen for kilometres.