The document discusses why it has been so cold in Britain during 2010. It explains that high pressure over the poles and low pressure over middle latitudes has caused weather to come from a northerly direction through a phenomenon called the Arctic Oscillation. It also mentions using apps on an iPhone or iPod to help cope with cold weather, such as alerts for school closings or help making optimal snowballs according to snow conditions. Readers are encouraged to imagine other apps that could help survive cold spells.