The most powerfuloffeedbacksin the Arcticissea iceandsnow cover, saidMiller, the lead author on a paperaboutpast "Arctic amplification" in the journalQuaternaryScienceReviews.
Think of all the energy expended in pumping that water, treating it, spraying it on crops, heating it for your shower, making it into ice, Coca-Cola, paper, and on and on.
"Seymour's work provided evidence with which to propose and eventually launch the Cryosat mission, which is now - as his last paper describes - providing the first observations of the annual cycle of sea-ice growth and decay throughout the Arctic Ocean, " Dr Giles said.