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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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Upcoming Developments in International Governance of Marine Carbon Dioxide Removal

Law Columbia

The Intergovernmental Panel on Climate Change has concluded that CDR will be needed, alongside deep emissions cuts, to limit global warming to 1.5 But, in 2013, the parties to the London Protocol adopted an amendment that is intended to be. The 2013 amendment has not yet entered into force.

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A deep dive into the IPCC’s updated carbon budget numbers

Real Climate

And since the first IPCC estimates published in 2013, we have learned a lot and have gotten much better at estimating remaining carbon budgets. How have these estimates changed since previous reports? IPCC reported carbon budgets for the first time in 2013. in 2018, but they represent a significant update since AR5 in 2013.

2018 359
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Has Gasoline Use in California Peaked?

Union of Concerned Scientists

To meet emissions goals and avoid the worst impacts of climate change, this trend will need to accelerate over the coming decades. However the long term drop in per person gasoline use is likely due to fuel economy and greenhouse gas standards that have made gasoline vehicles more efficient over the prior decades.

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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 ). I don’t know the answer to his question. But this discussion paper is problematic for sure.

Sea Level 354
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How not to science

Real Climate

Instead, they chose to hide the structural uncertainty in the MSU retrievals (the TMT trends for 1979-2013 in UAH v5.5 TLT trends for 1979-2013 were 0.14± 0.05 McNider, "Satellite greenhouse signal", Nature , vol. Climatic Change , vol. But McNider and Christy chose not to do that. and RSS v3.3 and 0.08 +/- 0.05

2014 342
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Diesel is the Reason for the Sneezin’: Cleaner Holiday Deliveries are on the Horizon

Union of Concerned Scientists

For example, home deliveries in some areas may cut climate-warming emissions compared to driving in a personal vehicle to purchase items in person. The share of online transactions among total US sales grew from just under six percent in 2013 to around 15 percent in 2021, according to the Census Bureau’s Annual Retail Trade Survey.