The low thermal expansion coefficient at the cold temperatures of the high southern latitudes, changes in wind patterns and transport of the heat taken up to lower latitudes are all possible explanations. (ipcc.ch)
Some breeds don't tolerate anything below 40 well without protection, while others are good for longer at colder temperatures. (yourpetspace.info)
The main technical obstacles to the fuel cell technology used to be range, longevity of the fuel cell and operation at cold temperatures. (scientificamerican.com)