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Study finds rising seas are eroding value of homes along coast – The Boston Globe

A home in Quincy’s Houghs Neck section, in March 2018.

Depreciation estimated at $273m in Mass. as prices slip in risky areas

By Tim Logan Globe Staff January 22, 2019

Rising seas have already cost Massachusetts homeowners more than a quarter of a billion dollars in lost property value, according to a study set to be published Tuesday, with much more severe losses likely to come.

That’s according to the First Street Foundation, a New York-based nonprofit that studies sea level rise and its impacts on coastal communities. Its report estimates that the value of homes in Massachusetts has potentially been eroded by $273 million since 2005 because of concerns about flooding and sea level rise, with the biggest effects in low-lying parts of coastal towns, including Salisbury and Barnstable.

Studies of changes in the sea level have typically looked forward, such as an estimate last year by the Union of Concerned Scientists that 7,000 Massachusetts homes, worth $4 billion, would be subject to chronic flooding by 2045.

…(read more).

Antarctic krill: Key food source moves south – BBC News

A keystone prey species in the Southern Ocean is retreating towards the Antarctic because of climate change.

Krill are small, shrimp-like creatures that swarm in vast numbers and form a major part of the diets of whales, penguins, seabirds, seals and fish.

Scientists say warming conditions in recent decades have led to the krill contracting poleward.

If the shift is maintained, it will have negative ecosystem impacts, they warn.

Already there is some evidence that macaroni penguins and fur seals may be finding it harder to get enough of the krill to support their populations.

“Our results suggest that over the past 40 years, the amount of krill has, on average, gone down, and also the location of the krill has contracted to much less of the habitat. That suggests all these other animals that eat krill will face much more intense competition with each other for this important food resource,” Simeon Hill from the British Antarctic Survey told BBC News.

The study is published in the journal Nature Climate Change.

• Space laser makes height maps of Earth
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• Biggest ever Antarctic field campaign

…(read more).