Travelling through the Arctic is notoriously difficult and climate change is making it even harder. But there is a way to rise above the problem: the latest generation of lighter-than-air vehicles. Canadian company Discovery Air has signed a contract with the UK's Hybrid Air Vehicles (HAV) to buy around 45 new hybrid air vehicles. These aircraft will be used across Canada's Northwest Territories.
Read More: http://www.newscientist.com/blogs/onepercent/2011/09/arctic-airships.html
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