In summer more sea ice melts, which leads to decreased albedo, a climate feedback that enhances the warming of both the open ocean water and the atmosphere directly above it. (bitsofscience.org)
That an updated version would show enhanced warming is predictable at this point in the debate. (theinconvenientskeptic.com)
In the future, if our planet has fewer of them, more sunlight will penetrate through to the earth's surface, which could potentially enhance warming. (discovermagazine.com)