Why is our upper atmosphere cooling?

We've all heard about the warming of our atmosphere, but now we're being told it is cooling as well! How come? Apparently it's all to do with how the different layers of our atmosphere react to incoming sunlight and outgoing infrared light. Research now shows that cooling in the upper layers could be jeopardising satellite orbits and opening up a new ozone hole above the arctic. So what's going on??

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Center for Behavior and Climate.
https://climatechange.behaviordevelopmentsolutions.com/just-have-a-think-jhat

Research Links

Simon Clark - Why the sun cannot be behind global warming
https://www.youtube.com/watch?v=y35Lzgc9iJk&t=403s

Space Debris Animation
https://www.youtube.com/watch?v=6Wf4H0e9rfU&t=1s

Main paper - Santer et al
https://www.pnas.org/doi/pdf/10.1073/pnas.2300758120

Manabe and Wetherald
https://phys.org/news/2021-10-influential-climate-science-paper.html

Article in Yale Environment 360 by Fred Pearce
https://e360.yale.edu/features/climate-change-upper-atmosphere-cooling

GHG Gases shrinking the atmosphere
https://phys.org/news/2021-05-greenhouse-gases-stratosphere.html

https://iopscience.iop.org/article/10.1088/1748-9326/abfe2b

Arctic Ozone research paper
https://www.nature.com/articles/s41467-021-24089-6

UN Montreal protocol video
https://www.youtube.com/watch?v=MgUobxtdm4A&t=129s

Check out other YouTube Climate Communicators

zentouro: https://www.youtube.com/user/zentouro

Climate Adam: https://www.youtube.com/user/ClimateAdam

Kurtis Baute: https://www.youtube.com/user/ScopeofScience

Levi Hildebrand: https://www.youtube.com/user/The100LH

Simon Clark: https://www.youtube.com/user/SimonOxfPhys

Sarah Karvner: https://www.youtube.com/channel/UCRwMkTu8sCwOOD6_7QYrZnw

Rollie Williams / ClimateTown: https://www.youtube.com/channel/UCuVLG9pThvBABcYCm7pkNkA

Jack Harries: https://www.youtube.com/user/JacksGap

Beckisphere: https://www.youtube.com/channel/UCT39HQq5eDKonaUV8ujiBCQ

Our Changing Climate : https://www.youtube.com/channel/UCNXvxXpDJXp-mZu3pFMzYHQ

Engineering With Rosie https://www.youtube.com/c/EngineeringwithRosie

Ella Gilbert https://www.youtube.com/c/DrGilbz

Planet Proof https://www.youtube.com/channel/UCdtF58iBRQ2C3QPeKKzxwiA