Again, ill say the shots are really good. Im around quite a few people who look at weathe rpatterns and such like in my uni. In general you'l see scientists are reluctant to use the term global warming, simpy for the reason that though many places are getting warmer, some do get colder. Its far more common to refer to global climate change, as its the extremes of weather that are becoming more common, both hot and cold. Just look at the prevelance of floods, hurricanes, etc in recent times. The weather patterns around the world are all becoming far more unstable.
Still you've got some good shots form the cold id say.