walking on thin ice

While the steady disappearance of sea ice in the Arctic has been one of the hallmark effects of global warming, research shows it is not only covering less of the planet, but it’s also getting significantly thinner.

That makes it more susceptible to melting, potentially altering local ecosystems, shipping routes and ocean and atmospheric patterns. In estimating ice thickness, satellites must try to gauge thickness differences of just a few feet from hundreds of miles above the planet’s surface.

“It’s a tricky business,” University of Washington researcher, Ron Lindsay said.

The Guardian, 5 March 2015