Facing a cold shock: How melting ice could alter global climates and raise sea levels

A recent study raises alarms about the potential catastrophic effects of climate change on the Atlantic Ocean's temperature and ecosystems.

Brian Resnick reports for Vox.


In short:

  • A scientific paper warns that melting ice could lead to a significant drop in temperatures in parts of Europe, alongside other global climate effects.
  • The Atlantic Meridional Overturning Circulation (AMOC), crucial for regulating global climate, faces the risk of a "death spiral" due to freshwater influx.
  • This scenario, while uncertain, underlines the need for immediate climate action to prevent possible drastic changes.

Key quote:

“The trickiest part about modeling this is the whole system is very dependent on how the ocean and the atmosphere interact with each other.”

— Till Wagner, atmospheric and ocean scientist at the University of Wisconsin-Madison

Why this matters:

Warmer waters can disrupt the habitats of many marine species, leading to shifts in species distributions as fish and marine mammals migrate to cooler areas. This can impact food webs and the livelihoods of communities dependent on fishing.

Ocean heat waves, which can push out fish, plankton and other aquatic life, are happening far more frequently than previously thought.

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A Texas oil company’s bid to revive long-idled drilling platforms off the Santa Barbara coast is faltering amid mounting lawsuits, regulatory setbacks, and financial strain.

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New Mexico has huge potential for geothermal energy—what will it take to harness it?

With vast untapped geothermal reserves beneath its surface, New Mexico could become a national leader in renewable energy.

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Climate change and aging drains wreak havoc on Indian city

A deluge that dumped more than 12% of of Kolkata's annual rainfall in a single day left the city flooded, revealing how climate change–driven extreme weather and a crumbling drainage system are straining India’s urban infrastructure.

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A Japanese Pinot Noir town blessed by climate change now worries about the weather

Climate change has helped make the small Japanese town of Yoichi the toast of Pinot Noir connoisseurs. But farmers fret that recent rapid gains in temperatures and potentially more rain during harvesting could mean it will become difficult to grow the grape here.
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Extreme heat is making toxics even more dangerous to farmworkers, study says

Extreme heat can exacerbate the impacts of some toxics on the kidneys, according to a University of Arizona study published this month in the journal Environmental Research.

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Planet’s first catastrophic climate tipping point reached, report says, with coral reefs facing ‘widespread dieback’

Unless global heating is reduced to 1.2C ‘as fast as possible’, warm water coral reefs will not remain ‘at any meaningful scale’, a report by 160 scientists from 23 countries warns.

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As Trump rants against clean energy, the rest of the world zooms past the U.S.

U.S. politics are undercutting clean energy at the same time economics are propelling it forward globally. Can the U.S. afford to sit this out?
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