The changes we've seen in the Arctic over the past few decades are nothing short of remarkable.

That's quite remarkable. We normally talk about tenths of degrees and this was almost one full degree past the previous record.

We keep looking for the ice to recover, but it isn't. Unless conditions turn unusually cold this spring and summer, we may be looking at sea ice losses in 2006 that will rival what we saw in 2005.

What you're starting to see is the greenhouse effect starting to emerge.

We've put a hit on the system and we are in the midst of a grand global experiment. We will have to live with the outcome.

Something has fundamentally changed here, and the best answer is warming.