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Sea Level Rise is Already Threatening Communities

Union of Concerned Scientists

In an era when massive heat domes blanket large swaths of continents for days, wildfires burn through areas the size of small countries, and hurricanes regularly push the limits of what we once thought possible, sea level rise can seem like extreme weather’s low-key cousin. Since 1993, sea level has risen by an average rate of 3.1

Sea Level 342
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Why is future sea level rise still so uncertain?

Real Climate

Three new papers in the last couple of weeks have each made separate claims about whether sea level rise from the loss of ice in West Antarctica is more or less than you might have thought last month and with more or less certainty. Two elephant seals in the Southern Oceans arguing about marine ice cliff instability.

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The water south of Greenland has been cooling, so what causes that?

Real Climate

An AMOC weakening by 15 % thus cools the region at a rate of 0.15 x 10 14 W and according to model simulations can fully explain the observed cooling trend (2). Here we start by taking the Greenland mass loss rate into the ocean, times the temperature difference between the meltwater and the water it replaces.

Cooling 364
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Venice may get a temporary respite from rising seas by 2035

New Scientist

High winter sea levels in Venice are linked to warmer sea surface temperatures in the North Atlantic Ocean, and cooling in that ocean over coming decades should therefore temporarily compensate for the city's sea level rise

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Meet the Prehistoric Animals that Ruled the Ocean

Ocean Conservancy

When we think about the age of the dinosaurs, we often forget about what was swimming in the ocean during that period. Global sea levels were high during the Mesozoic period in which dinosaurs ruled the earth. See more wonderful ocean animals! Thanks for signing up for Ocean Conservancy emails. Mosasaurus. ©

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Phantastic Job!

Real Climate

Think about what is involved – biological proxies from extinct species, plate tectonic movement, disappearance in subduction zones of vast amounts of ocean sediment, interpolating sparse data in space and time, degradation of samples over such vast amounts of time. All of which adds to the uncertainty. van der Meer, C.R. Scotese, B.J.

Sea Level 358
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The AMOC: tipping this century, or not?

Real Climate

If the AMOC weakens, this region will cool. And in fact it is cooling – it’s the only region on Earth which has cooled since preindustrial times. that the sea surface temperature there in winter is a good index of AMOC strength, based on a high-resolution climate model. From Rahmstorf and Ganopolski 1999.

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