Fancy that! After a load of handwringing earlier this month, mobile pack ice in the Bering Sea has returned. Just like ice in the Barents Sea, Bering Sea ice is highly variable (Brown et al. 2011): it moves with winds and currents, so a ‘decline’ during the winter usually indicates redistribution, not melting. According to […]

via It’s back: Bering Sea polar bear habitat has recovered from a low earlier this month — polarbearscience

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[John Vidal/HUFFPOST/15 de marzo del 2019] A three-year UN-backed study from the Intergovernmental Science-Policy Platform On Biodiversity and Ecosystem Services has grim implications for the future of humanity. Nature is in freefall and the planet’s support systems are so stretched that we face widespread species extinctions and mass human migration unless urgent action is taken. […]

via The Rapid Decline Of The Natural World Is A Crisis Even Bigger Than Climate Change — Systemic Alternatives

POLAR BEAR POPULATIONS

Sixty-to-eighty percent of the world’s polar bear population lives in Canada. Total world population is estimated at between 25,000-31,000. Climate change may cause the existing population to decrease by up to 30% by 2050, according to some estimates. Habitat incursions by oil exploration companies, along with pollution are additional threats.

TM