CNN reports that a large ice shelf in northern Canada has broken free and is now a "floating ice island." Warwick Vincent, an expert on Arctic conditions says, "This is a dramatic and disturbing event. It shows that we are losing remarkable features of the Canadian North that have been in place for many thousands of years. We are crossing climate thresholds, and these may signal the onset of accelerated change ahead."
Though I hope that Mr. Vincent is wrong about the rate of warming accelerating, I suspect that he is correct. Time is short - which is why we need to continue our work to reduce the global warming impact of our lifestyles.
You can read the CNN article here.