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CMIP6: Not-so-sudden stratospheric cooling

Real Climate

As predicted in 1967 by Manabe and Wetherald , the stratosphere has been cooling. The dominant factors are changes in CO2 (a cooling), ozone depletion (a cooling), warming from big volcanoes, and oscillations related to the solar cycle. Thompson et al. We are using the NOAA-STAR version 3.0 of these products (Zou et al.,

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A Nobel pursuit

Real Climate

Fortunately, Manabe recently wrote a retrospective on his early work in response to receiving the Crafoord prize in 2018. 2018 ), but I think it’s fair to say that few modelers think it’s a useful tool anymore. In his 2018 retrospective, Manabe doesn’t discuss the issue at all. Manabe’s Climate Modeling.

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Antarctic extreme events: ‘All-time records are being shattered not from decades ago, but from the last few years and months’

Frontiers

Writing as part of Frontiers’ guest editorials series, the study’s lead author – Prof Martin Siegert, deputy vice chancellor of the University of Exeter (Cornwall) – discusses how without there being a rapid shift to net-zero greenhouse gas emissions by 2050, the Antarctic environment will experience ever more drastic changes.

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

Real Climate

In the 2018 IPCC Special Report on Global Warming of 1.5°C in 2018, but they represent a significant update since AR5 in 2013. Source: Data from IPCC (2014), Rogelj et al (2018), and IPCC (2021). Source: Data from IPCC (2014), Rogelj et al (2018), and IPCC (2021). 2018) A new scenario resource for integrated 1.5 °C

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Using Clouds to Fight Climate Change

HumanNature

Student in the Department of Atmospheric Science at Colorado State University Most people remember the water cycle they learned in school: water evaporates from lakes, rivers, and the ocean, air carrying this moisture rises, cools, condenses, and forms clouds, and these clouds precipitate water back down to the surface.

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Getting physical with the climate crisis

Physics World

Extreme heat is not just an abstract notion: if we can’t cool our bodies enough, we’re in danger of neurological failure, organ failure and even death, with the risks highest for children and the elderly. On balance, clouds nearer the stratosphere warm us, whereas low-lying clouds tend to cool us because their greenhouse effect is smaller.

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The Fuss about Methane

Legal Planet

Methane is essential to control, since stabilizing climate requires reducing all anthropogenic greenhouse-gas emissions to net-zero. The issue is that total human radiative forcing includes several parts that heat and some that cool, so counting separate heating contributions like this leaving out the cooling parts gives too much heating.).