The set of cracks in the Arctic sea ice across the Beaufort and Chukchi Seas that we showed three days ago have now refrozen, and some new ones have opened up nearer the north coast of Alaska. However whilst that has been going on another set of "cracks" over on the Russian side of the Arctic have been growing ever wider. Here's how the Laptev Sea looks from space this morning:

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I've just stumbled across an exciting new (to me at least) section of the NASA web site. It's called Worldview, and it does what it says on the tin. It's part of NASA's Earth Observing System Data and Information System (EOSDIS for short), and it gives you a satellite's view of planet Earth a bit like Google Earth, except that it's updated on a daily basis! To give you some idea of the power of Worldview, and also an insight into why I was wandering the virtual corridors of NASA late last night, here's a "close up" image of Cape Morris Jesup, the most northerly point in Greenland, taken on March 18th 2013:

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I'm currently engaged in a debate on Twitter with @Cornishview.  His avatar doesn't reveal a gender, so I'm guessing here, but it does suggest that he understands the part that coal and the latent heat of vaporisation of water played in the beginning of the industrial revolution down here in not so sunny South West England. Cornishview says over on Twitter that:

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Roland Emmerich's "The Day After Tomorrow" is a BAFTA award winning action/adventure movie in which, according to the Internet Movie Database:

A sudden international storm plunges the planet into a new Ice Age.

A large team of scientists have spent the last four years investigating how close to the truth the movie is, under the auspices of the European Union's "Thermohaline Overturning – at Risk?" project (or THOR for short). The project web site states that their objectives are to:

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