by solar effects. The unusual Arctic weather is a symptom of the northern jet stream shifting south as the World cools. So far the warmth in the Pacific has hidden things but that will only last a while. Abdussamatov thinks that by 2020, the Arctic will be as cold as in 1900 and I suspect he's right. This is why I have warned UK authorities that they will need inshore ice breakers from that date to keep some ports open. Those living in Canada and the northern Great Plains must prepare for the bitter cold to come; it'll last 50 years at least! Are you that fookin stoopid? Radiation of one form can't reduce radiation of another form. Photons are indistinguishable particles that can't interact (coherent radiation nothwithstanding). It's not like I can place a protective shield of radiation aura around my body and expect to repel incoming photons. I just checked your graph. And I see that back in mid-March the Arctic ice extent was just about the biggest that had ever been recorded. How can this be? If AGW means the seas are getting consistently warmer, how come there was *more * ice late last winter than in the previous ten years? Either it ain't getting warmer, or the AGW isn't the only thing that causes ice to melt (or refreeze). Read Kirchhoff and he tells you why his Radiation Law applies in a particular wavelength interval . Radiative equilibrium means IR from the second emitter modifies the