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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 world’s oceans are heading towards peak acidity?

A Greener Life

Our oceans are acidifying. A new report has warned that the level of acidity in the world’s oceans is higher now than it has been for the past 26,000 years. In a statement, WMO Secretary-General Petteri Taalas said “Our climate is changing before our eyes. Photo credit: Reuters / Jorge Silva.

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New, Updated Carbon Majors Dataset Holds Promise for Researchers, Litigators

Union of Concerned Scientists

That 2013 headline resulted from the first effort to quantify emissions from the ‘carbon majors’ —fossil fuel companies and cement manufacturers whose businesses have contributed an outsized amount of heat-trapping gases to the atmosphere. Nearly two-thirds of industrial heat-trapping emissions can be traced to just 90 entities.

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Calling Out Climate Lies for a Living

Union of Concerned Scientists

Most of these pieces were about the company’s support for a seemingly independent network of anti-regulation, “free-market” nonprofits that spread falsehoods about the reality and seriousness of climate change. We do not support climate denial,” he replied. “We Rex Tillerson, ExxonMobil CEO from 2006 to 2016.

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A distraction due to errors, misunderstanding and misguided Norwegian statistics

Real Climate

Presumably Dagsvik and Moen are used to this kind of model, but they seem to be inexperienced with the models used for weather and climate, which on the other hand are based on the laws of physics. The global sea level acts like the mercury in a thermometer because warmer water expands.

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Deciphering the ‘SPM AR6 WG1’ code

Real Climate

I followed with great interest the launch of the sixth assessment report Working Group 1 (The Physical Science Basis) from the Intergovernmental Panel on Climate Change (IPCC) on August 9th. The problems with the SPM are similar those from the previous fifth assessment report which prompted me to write a post in 2013.

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AR6 of the best

Real Climate

Here are a few things that mark this report out from previous versions that relate to issues we’ve discussed here before: Extreme events are increasingly connected to climate (duh!) Extremes : Back in 2012, the literature assessed by AR5 connecting changes in extremes to climate change was scant. Figure SPM 8.

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