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Sea level in the IPCC 6th assessment report (AR6)

Real Climate

My top 3 impressions up-front: The sea level projections for the year 2100 have been adjusted upwards again. The IPCC gives more consideration to the large long-term sea-level rise beyond the year 2100. And here is the key sea-level graphic from the Summary for Policy Makers: Source: IPCC AR6, Figure SPM.8.

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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. 2020) or Sadai et al.

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WMO: Greenhouse gases will keep rising

A Greener Life

By Anders Lorenzen On the eve of the COP28 UN climate summit, The World Meteorological Organization (WMO), a United Nations (UN) body, has warned that the atmospheric concentration of greenhouse gases (GHG) is forecast to continue the trend that resulted in record-high CO2 measurements last year.

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The Social Cost of Greenhouse Gas Emissions is About to Get Much More Expensive

Law and Environment

In its regulatory impact analysis for the supplemental proposal, EPA included a sensitivity analysis detailing a revised methodology and new estimates for social cost of greenhouse gases (SC-GHGs), including carbon, methane, and nitrous oxide. The SCC remains potentially open to a challenge on the merits when applied in a particular case.

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What’s Up With Water — August 16, 2021

Circle of Blue

Meltwater from Greenland’s ice sheets have caused about a quarter of the rise in the world’s sea levels. It says that by swiftly and drastically cutting greenhouse gas emissions, the worst effects of climate change can be prevented, avoiding worst-case outcomes for water availability. The report, while grim, does offer hope.

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2021-2022 California Environmental Legislation: What’s Been Enacted?

Legal Planet

The Governor approved a notable slate of climate legislation with a package that includes more stringent greenhouse gas (GHG) emission targets and measures designed to reduce the state’s reliance on fossil fuels. The post 2021-2022 California Environmental Legislation: What’s Been Enacted? Climate Change Mitigation. Conclusion.

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A distraction due to errors, misunderstanding and misguided Norwegian statistics

Real Climate

A friend asked me if a discussion paper published on Statistics Norway’s website, ‘ To what extent are temperature levels changing due to greenhouse gas emissions? ’, was purposely timed for the next climate summit ( COP28 ). The global sea level acts like the mercury in a thermometer because warmer water expands.

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