Create accountLogin

Recent searches

No recent searches

Search options

Only available when logged in.
en.osm.town is one of the many independent Mastodon servers you can use to participate in the fediverse.
An independent, community of OpenStreetMap people on the Fediverse/Mastodon. Funding graciously provided by the OpenStreetMap Foundation.

Administered by:

Server stats:

256
active users

en.osm.town: AboutProfiles directoryPrivacy policy

Mastodon: AboutGet the appKeyboard shortcutsView source codev4.3.7

#cfcs

0 posts0 participants0 posts today
clacke: exhausted pixie dream boy 🇸🇪🇭🇰💙💛<p>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.</p><p>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.</p><p>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.</p><p><a href="https://www.nasa.gov/missions/aura/nasa-study-first-direct-proof-of-ozone-hole-recovery-due-to-chemicals-ban/" rel="nofollow noopener noreferrer" target="_blank">nasa.gov/missions/aura/nasa-st…</a></p><p><a href="https://www.bbc.com/news/science-environment-56014092" rel="nofollow noopener noreferrer" target="_blank">bbc.com/news/science-environme…</a></p><p><a href="https://en.wikipedia.org/wiki/Ozone_depletion" rel="nofollow noopener noreferrer" target="_blank">en.wikipedia.org/wiki/Ozone_de…</a></p><p><a href="https://libranet.de/search?tag=OzoneLayer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OzoneLayer</span></a> <a href="https://libranet.de/search?tag=OzoneDepletion" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OzoneDepletion</span></a><br><a href="https://libranet.de/search?tag=OzoneDepletingSubstances" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OzoneDepletingSubstances</span></a> <a href="https://libranet.de/search?tag=ODSes" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ODSes</span></a><br><a href="https://libranet.de/search?tag=chlorofluorocarbons" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>chlorofluorocarbons</span></a> <a href="https://libranet.de/search?tag=CFCs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CFCs</span></a></p>
David Hembrow<p>A blog post about buying a new appliance. I don't do this often. In general I try to repair things instead of buying new. But in this case the old refrigerator (which was in our home when we moved here 17 years ago) was using an absurd amount of electricity. Our consumption will be about 600 kWh a year lower due to replacing an old fridge and an old freezer with a new A-rated appliance.<br><a href="https://davidhembrow.blogspot.com/2024/06/saving-energy-with-new-appliances.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">davidhembrow.blogspot.com/2024</span><span class="invisible">/06/saving-energy-with-new-appliances.html</span></a><br><a href="https://todon.eu/tags/savingenergy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>savingenergy</span></a> <a href="https://todon.eu/tags/energyefficiency" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>energyefficiency</span></a> <a href="https://todon.eu/tags/refrigerator" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>refrigerator</span></a> <a href="https://todon.eu/tags/cfcs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>cfcs</span></a> <a href="https://todon.eu/tags/kitchen" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>kitchen</span></a> <a href="https://todon.eu/tags/kitchenrenovation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>kitchenrenovation</span></a> <a href="https://todon.eu/tags/diy" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>diy</span></a> <a href="https://todon.eu/tags/savingmoney" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>savingmoney</span></a></p>
Chuck Darwin<p>When old satellites fall into Earth's atmosphere and burn up, they leave behind tiny particles of aluminum oxide, <br>🔸which eat away at Earth's protective ozone layer. 🔸<br>A new study finds that these oxides have 💥increased 8-fold between 2016 and 2022 💥<br>and will continue to accumulate as the number of low-Earth-orbit satellites skyrockets.</p><p>The 1987 Montreal Protocol successfully regulated ozone-damaging <a href="https://c.im/tags/CFCs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CFCs</span></a> to protect the <a href="https://c.im/tags/ozone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ozone</span></a> layer, <br>shrinking the ozone <a href="https://c.im/tags/hole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>hole</span></a> over Antarctica with recovery expected within fifty years. <br>But the unanticipated growth of <a href="https://c.im/tags/aluminumoxides" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>aluminumoxides</span></a> may push pause on the ozone success story in decades to come.<br>Of the 8,100 objects in low Earth orbit, 6,000 are <a href="https://c.im/tags/Starlink" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Starlink</span></a> satellites launched in the last few years. <br>Demand for global internet coverage is driving a rapid ramp up of launches of small communication satellite swarms. <br><a href="https://c.im/tags/SpaceX" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SpaceX</span></a> is the frontrunner in this enterprise, with permission to launch another ⭐️ 12,000 Starlink satellites and as many as ⭐️42,000 planned. <br><a href="https://c.im/tags/Amazon" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Amazon</span></a> and other companies around the globe are also planning constellations ranging from 3,000 to 13,000 satellites, the authors of the study said.<br>Internet satellites in low Earth orbit are short-lived, at about five years. <br>Companies must then launch replacement satellites to maintain internet service, continuing a cycle of planned obsolescence and unplanned pollution.</p><p>Aluminum oxides spark chemical reactions that destroy stratospheric ozone, which protects Earth from harmful <a href="https://c.im/tags/UV" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>UV</span></a> radiation. <br>The oxides don't react chemically with ozone molecules, instead triggering destructive reactions between ozone and chlorine that deplete the ozone layer. <br>Because aluminum oxides are not consumed by these chemical reactions, they can continue to destroy molecule after molecule of ozone for decades as they drift down through the stratosphere.<br><a href="https://phys.org/news/2024-06-satellite-megaconstellations-jeopardize-recovery-ozone.html" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://</span><span class="ellipsis">phys.org/news/2024-06-satellit</span><span class="invisible">e-megaconstellations-jeopardize-recovery-ozone.html</span></a></p>
💧🌏 Greg Cocks<p>New Instrument Provides Hourly Measurements of Atmospheric Pollutants [TEMPO, NASA]<br>--<br><a href="https://www.earthdata.nasa.gov/learn/articles/tempo-overview" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">earthdata.nasa.gov/learn/artic</span><span class="invisible">les/tempo-overview</span></a> &lt;-- shared overview<br>--<br>TEMPO - Tropospheric Emissions: Monitoring of POllution<br><a href="https://techhub.social/tags/GIS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GIS</span></a> <a href="https://techhub.social/tags/spatial" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>spatial</span></a> <a href="https://techhub.social/tags/mapping" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>mapping</span></a> <a href="https://techhub.social/tags/remotesensing" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>remotesensing</span></a> <a href="https://techhub.social/tags/NorthAmerica" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NorthAmerica</span></a> <a href="https://techhub.social/tags/Mexico" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Mexico</span></a> <a href="https://techhub.social/tags/Canada" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Canada</span></a> <a href="https://techhub.social/tags/USA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>USA</span></a> <a href="https://techhub.social/tags/oilsands" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>oilsands</span></a> <a href="https://techhub.social/tags/tarsands" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>tarsands</span></a> <a href="https://techhub.social/tags/emissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>emissions</span></a> <a href="https://techhub.social/tags/earthobservation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>earthobservation</span></a> <a href="https://techhub.social/tags/pollution" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pollution</span></a> <a href="https://techhub.social/tags/pollutants" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>pollutants</span></a> <a href="https://techhub.social/tags/troposphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>troposphere</span></a> <a href="https://techhub.social/tags/O3" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>O3</span></a> <a href="https://techhub.social/tags/NO2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>NO2</span></a> <a href="https://techhub.social/tags/SO2" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>SO2</span></a> <a href="https://techhub.social/tags/ozone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ozone</span></a> <a href="https://techhub.social/tags/CFCs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CFCs</span></a> <a href="https://techhub.social/tags/climatechange" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>climatechange</span></a> <a href="https://techhub.social/tags/ozonelayer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ozonelayer</span></a> <a href="https://techhub.social/tags/OMPS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OMPS</span></a> <a href="https://techhub.social/tags/JPSS" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>JPSS</span></a> <a href="https://techhub.social/tags/satellite" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>satellite</span></a> <a href="https://techhub.social/tags/monitoring" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>monitoring</span></a> <a href="https://techhub.social/tags/instrumentation" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>instrumentation</span></a> <a href="https://techhub.social/tags/ESA" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>ESA</span></a> <a href="https://techhub.social/tags/TROPOMI" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TROPOMI</span></a> <a href="https://techhub.social/tags/sentinel5" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>sentinel5</span></a> <a href="https://techhub.social/tags/TEMPO" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>TEMPO</span></a> <a href="https://techhub.social/tags/geostationary" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>geostationary</span></a> <a href="https://techhub.social/tags/airpollution" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>airpollution</span></a> <a href="https://techhub.social/tags/GeoAQ" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>GeoAQ</span></a> <a href="https://techhub.social/tags/model" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>model</span></a> <a href="https://techhub.social/tags/modeling" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>modeling</span></a> <a href="https://techhub.social/tags/emissions" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>emissions</span></a> <a href="https://techhub.social/tags/atmospheric" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atmospheric</span></a> <a href="https://techhub.social/tags/atmosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>atmosphere</span></a> <br><span class="h-card" translate="no"><a href="https://techhub.social/@nasa" class="u-url mention" rel="nofollow noopener noreferrer" target="_blank">@<span>nasa</span></a></span></p>
Ruth Mottram<p>About that ozone hole.. </p><p>Doesn't seem to be healing very fast - not due to <a href="https://fediscience.org/tags/CFCs" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>CFCs</span></a> necessarily but a quirk of the <a href="https://fediscience.org/tags/Climate" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Climate</span></a> system means a colder <a href="https://fediscience.org/tags/Stratosphere" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Stratosphere</span></a> - which is delaying things. <br>Really good piece from my colleagues at DMI on it (in danish but DeepL works really well for translation): <br><a href="https://fediscience.org/tags/OzoneHole" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OzoneHole</span></a> <a href="https://fediscience.org/tags/OzoneLayer" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>OzoneLayer</span></a> <a href="https://fediscience.org/tags/Ozone" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Ozone</span></a> <a href="https://fediscience.org/tags/Antarctica" class="mention hashtag" rel="nofollow noopener noreferrer" target="_blank">#<span>Antarctica</span></a> <br><a href="https://www.dmi.dk/nyheder/2024/ozonhullets-lange-helingsproces" rel="nofollow noopener noreferrer" translate="no" target="_blank"><span class="invisible">https://www.</span><span class="ellipsis">dmi.dk/nyheder/2024/ozonhullet</span><span class="invisible">s-lange-helingsproces</span></a></p>
ExploreLive feeds
About