Jennifer Marohasy

a forum for the discussion of issues concerning the natural environment

Polar Bears

Polar Bears Move When Climate Changes: A Note from Nichole Hoskin

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THIRTY years ago polar bear experts were discussing 'climatic fluctuations' rather than climate change, and the effect this can have on polar bear distribution in the Arctic.  In fact, Christian Vibe, the Greenland representative on the Polar Bear … [Read more...] about Polar Bears Move When Climate Changes: A Note from Nichole Hoskin

No Reliable Data on Historical Polar Bear Numbers – A Note from Nichole Hoskin

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Polar bears (Ursus maritimus) have become a symbol of global warming, and their predicted decline a sign of worst to come, but until very recently population estimates were really just educated guesses. Current polar bear numbers are estimated to … [Read more...] about No Reliable Data on Historical Polar Bear Numbers – A Note from Nichole Hoskin

Polar Bears Can Survive where there is no Summer Sea Ice: A Note from Nichole Hoskin

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There has been a dramatic reduction in the extent of summer sea ice in the Arctic since 1870, Chart 1. Drawn by Nichole Hoskin using data from Arctic Climate Research at the University of Illinois Australian television's Four Corners showed a … [Read more...] about Polar Bears Can Survive where there is no Summer Sea Ice: A Note from Nichole Hoskin

‘Climate Change Refugees’ Not Refugees: A Note from Nichole Hoskin

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In the movie The Day After Tomorrow changes in ocean current circulation from global warming result in the northern hemisphere freezeing over and US citizens fleeing to Mexico in search of a warmer environment. In An Inconvenient Truth we are told … [Read more...] about ‘Climate Change Refugees’ Not Refugees: A Note from Nichole Hoskin