Not a good look

Arctic Ice Shelf Breaks Away in Canada - Science - redOrbit

For other Arctic melt news, Brian at LP had a good post this week that is worth looking at, as it pulls in images from a few different sources to show the extent of ice melt, and the decreasing depth of what remains. (But note that some headlines of the last couple of days about the ice cap now being an island have been exaggerating.)

As for other bad news from the north, there was a short, but worrying, report earlier this week about methane release from the seabed near Siberia. I think we'll be hearing more about this soon.

Meanwhile, the sceptics at Marohasy are getting worked up about the revised "Hockey stick" graph of Mann. Most skeptical commenters there are well beyond any possibility of being convinced that they may be wrong. It's denialism as a matter of faith. Personally, I've never worried too much about the hockey stick controversy, after I decided that it's not a good idea for the sake of the oceans to let CO2 increase to heights unseen for thousands or millions of years, regardless of the air temperature outside.

I note that Marohasy skeptics rely a lot on information sourced at CO2 Science. I am not sure how much more the guys who run that site could do in website design to make their motive obvious. (It features a hummingbird at a flower which has flourished with all that yummy CO2.) Their brief is clearly is to make everyone embrace CO2 as the "feel good" gas.

It has quite the opposite effect on me: it makes it very hard to take them seriously, right from the first glance.