RE: https://mastodon.social/@sundogplanets/116138358977573385

What happens to all the man-made #satellites in #Earth's #orbit, of which approximately 15,000 are active, while the #lifespan of a satellite is usually only a few years? L. Revell et al. (2026) express concern in their #Conversation #article that the #throwawaymentality is causing so many decommissioned satellites to finally land in the #outeratmosphere that their #fragments and burnt #dust are #exacerbating #climatechange and #ozonedepletion.
© this text #StefanFWirth 2026

Think CFCs were bad? Meet BFCs! But in the hands of my timeline, it makes for something more optimistic...and exotic.

Read more at my #blog: https://www.adamasnemesis.com/2025/10/24/beautiful-and-terrible-as-the-dawn/

This post's featured image is John Martin's "The Great Day of His Wrath".

#worldbuilding #scifi #sciencefiction #environment #ozone #ozonedepletion #ozonelayer #CFCs #BFCs #alternatehistory

Ozone–oxygen cycle (Biogeochemical cycle 🔄)

The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's stratosphere, converting ultraviolet radiation into heat. In 1930 Sydney Chapman resolved the chemistry involved. The process is commonly called the Chapman cycle by atmospheric scientists. Most of the ozone production occurs...

https://en.wikipedia.org/wiki/Ozone–oxygen_cycle

#OzoneOxygenCycle #Oxygen #OzoneDepletion #BiogeochemicalCycle #AtmosphericChemistry

4 Key Facts: How the Montreal Protocol Saved Earth’s Ozone Layer—and Millions of Lives…

Adopted 35 years ago, the Montreal Protocol remains a groundbreaking environmental agreement... scitechdaily #ozonelayer #montealprotocol #earth #environment #ozonedepletion #climatechange

https://formuchdeliberation.wordpress.com/2024/11/03/4-key-facts-how-the-montreal-protocol-saved-earths-ozone-layer-and-millions-of-lives/

There's a natural variation in ozone in the atmosphere, but CFCs and other substances were reducing ozone levels and expanding the seasonal ozone holes over the poles. The problem was real and it was getting worse, because CFCs were produced for a reason: It was really useful and cost-effective stuff.

Banning ozone-depleting substances for use as coolants, fire supressants, aerosol propellants and other applications was very successful, and after four decades we are now more than halfway to recovering to natural ozone levels.

A few years ago there was briefly some illegal production of CFCs, which halted the recovery, but it was tracked down and halted, and we are back on track.

nasa.gov/missions/aura/nasa-st…

bbc.com/news/science-environme…

en.wikipedia.org/wiki/Ozone_de…

#OzoneLayer #OzoneDepletion
#OzoneDepletingSubstances #ODSes
#chlorofluorocarbons #CFCs

Wildfires threaten the recovery of the ozone layer – Earth.com…

While the ozone layer has been successfully healing over the past decades – thanks to international environmental policies like the Montreal Protocol – it is now facing a complex and yet unforeseen challenge... earth.com #wildfires #ozonelayer #ozonedepletion #climatechange #environment #montrealprotocol

https://formuchdeliberation.wordpress.com/2024/07/15/wildfires-threaten-the-recovery-of-the-ozone-layer-earth-com/

Ozone–oxygen cycle (Biogeochemical cycle 🔄)

The ozone–oxygen cycle is the process by which ozone is continually regenerated in Earth's stratosphere, converting ultraviolet radiation into heat. In 1930 Sydney Chapman resolved the chemistry involved. The process is commonly called the Chapman cycle by atmospheric scientists. Most of the ozone production occurs...

https://en.wikipedia.org/wiki/Ozone–oxygen_cycle

#OzoneOxygenCycle #Oxygen #OzoneDepletion #BiogeochemicalCycle #AtmosphericChemistry

"Ozone layer recovery delayed, surface UV radiation continues to rise, finds study

According to a new study published in Advances in Atmospheric Sciences, the ozone isn't healing as quickly as expected, leading to higher levels of surface ultraviolet (UV) radiation in recent years.

Despite projections that the ozone layer would fully recover by mid-century, researchers found rising UV radiation levels in the tropics and northern mid-latitudes after 2010, posing risks to human health and the environment."

🔗: https://phys.org/news/2023-06-ozone-layer-recovery-delayed-surface.html

#Ozone #OzoneLayer #OzoneDepletion #UVRadiation #climate #environment #ClimateCrisis