Arctic winter ends with lowest sea ice cover in recorded history / Glaciers thawing restructures Arctic ecosystems -- scientists / Arctic hotspots study reveals areas of climate stress in Northern Alaska and Siberia / In pictures: Rapid thaw after Arctic weather / As Arctic climate warms, even Santa runs short of snow / Big shifts from tiny players: How climate change could disrupt Arctic ecosystems / Arctic climate change impact documented in Budapest photography exhibition / Study of cloud movement in the Arctic could provide better understanding of climate change in the region / From clouds to fjords, the Arctic bears witness to climate change / Pen Hadow: Climate change is making my epic Arctic crossing impossible