“The ongoing global #CoralBleaching event is the biggest to date,” #NOAA scientists said.
Bleaching occurs when #heat upends the #coral’s metabolism, causing it to turn white as it expels the symbiotic algae that provide it with nutrients & color. Bleaching doesn’t mean the coral has died, but prolonged bleaching — which scientists say is made more frequent & severe by rising #sea #temperatures — can kill it.
Largest #coral bleaching event on record harms 84% of #global #reefs
Bleached coral dies when exposed to #heat stress for too long, threatening the bountiful #marine #ecosystem that depends on it for survival.
#CoralReefs around the world are losing their color at an unprecedented scale as a result of rising #sea #temperatures, marine scientists announced this week, w/ 84% of reefs exposed to bleaching levels of heat since 2023.
#ClimateCrisis #oceans #conservancy
https://www.washingtonpost.com/climate-environment/2025/04/23/coral-reef-bleaching-record-heat-stress/
As climate change causes ocean temperatures to rise, coral bleaching events are expected to become more frequent. So, scientists are looking for ways to help coral reefs recover more quickly, and a new study from Japan suggests that artificial structures like breakwaters may be helpful.
By Bobby Bascomb
https://news.mongabay.com/short-article/2025/04/corals-recover-faster-on-artificial-structures-than-on-natural-reefs-study-finds/
Fifty years from now, in 2075, the world will be considerably hotter, perhaps as much as 3-5° Celsius (4.5 to 9° Fahrenheit) above the pre-industrial average.
Experts say we need to focus on building greater resilience into ecosystems now to help species get through the next half century.
By @Jeremy_Hance
https://news.mongabay.com/2025/04/how-is-conservation-preparing-for-a-much-hotter-world-experts-share/
Global temperatures hit historic highs for March.
Global temperatures remained at historic highs in March, extending an unprecedented heat streak, Europe's Copernicus Climate Change Service reported Tuesday.
Europe experienced its warmest March on record by a significant margin, intensifying unusual rainfall patterns across the rapidly warming continent.
#Butterflies in the #US are disappearing at a ‘catastrophic’ rate
Butterflies are rapidly fluttering out of existence from coast to coast at a rate that scientists worry could upend #ecosystems & undercut #pollination that sustains America’s #crops.
The total number of butterflies in the contiguous US has declined 22% over a 20yr period, as shrinking #habitat, rising #temperatures & a #toxic array of #pesticides kill off the delicate insects.
#ClimateCrisis #ClimateChange
https://www.science.org/doi/10.1126/science.adw1633
#Ocean #Temperatures Are Rising Much Faster Than Scientists Expected.
It isn’t exactly a surprise that the ocean is getting warmer, but the rate at which it’s doing so—roughly 400% faster than the rate of the 1980s—is alarming.
The scientists also estimate that the warming witnessed within the past 40 years will be eclipsed in less than 20 years without mitigation of #greenhouse #emissions.
https://www.popularmechanics.com/science/environment/a63612575/warming-ocean-temperatures/ #climate #climatechange
Le dernier mois de #janvier a été le plus chaud jamais mesuré dans le monde. #Climat #Copernicus #Globe
« Janvier 2025 est un autre mois surprenant, poursuivant les #températures records observées au cours des deux dernières années, malgré le développement des conditions La #Niña dans le Pacifique tropical et leur effet de refroidissement temporaire sur les températures #mondiales »
Why the heck is it 72F/21C right now on February 4th?
This is absolutely insane and totally uncalled for and not needed in any way.
IT'S WINTER TIME!
Spring doesn't start for another 6 weeks so we should NOT have these temps on this date. It really should be illegal!
#Temperatures at #northpole 20C above average and beyond #ice melting point
Scientists say unusually mild temperatures linked to low-pressure system over Iceland directing strong flow of warm air towards north pole
“This was a very extreme winter warming event,” said Mika Rantanen, a scientist at Finnish Meteorological Institute. “Probably not the most extreme ever observed, but still at the upper edge of what can happen in the #Arctic.”
https://www.theguardian.com/environment/2025/feb/04/temperatures-at-north-pole-20c-above-average-and-beyond-ice-melting-point #weather #climate #globalwarming
#Miyawaki micro-forests improve upon traditional #treeplanting techniques to create self-sustaining ecosystems and are one of the only ways for some cities to combat rising #temperatures and air #pollution
#Arctic #tundra is now emitting more #carbon than it absorbs, US agency says
Drastic shift driven by frequent #wildfires, pushing surface air #temperatures to second-warmest on record since 1900
by Dharna Noor, Tue 10 December
"The Arctic tundra is undergoing a dramatic transformation, driven by frequent wildfires that are turning it into a net source of carbon dioxide emissions after millennia of acting as a carbon sink, the US National Oceanic and Atmospheric Administration (#Noaa) said on Tuesday.
"This drastic shift is detailed in Noaa’s 2024 Arctic Report Card, which revealed that annual surface air temperatures in the Arctic this year were the second-warmest on record since 1900.
“'Our observations now show that the Arctic tundra, which is experiencing warming and increased wildfire, is now emitting more carbon than it stores, which will worsen climate change impacts,' said Rick Spinrad, a Noaa administrator.
"The report, led by scientists from the Woodwell Climate Research Center in Falmouth, Massachusetts, found that the Arctic is warming faster than the global average for the 11th year in a row.
"Currently, it is warming at up to four times the global rate, the authors found.
"Climate warming has dual effects on the Arctic. While it stimulates plant productivity and growth, which remove carbon dioxide from the atmosphere, it also leads to increased surface air temperatures that cause permafrost to thaw.
"When permafrost thaws, carbon trapped in the frozen soil is decomposed by microbes and released into the atmosphere as carbon dioxide and methane, two potent greenhouse gases.
"'We need accurate, holistic and comprehensive knowledge of how climate changes will affect the amount of carbon the Arctic is taking up and storing, and how much it’s releasing back into the atmosphere, in order to effectively address this crisis,' said Dr Sue Natali, a scientist at the Woodwell Center who contributed to the research. 'This report represents a critical step toward quantifying these emissions at scale.'
"Human-caused climate change is also intensifying high-latitude wildfires, which have increased in burned area, intensity and associated carbon emissions.
"Wildfires not only combust vegetation and soil organic matter, releasing carbon into the atmosphere, but they also strip away insulating soil layers, accelerating long-term permafrost thaw and its associated carbon emissions.
"'In recent years, we’ve seen how increasing fire activity from climate change threatens both communities and the carbon stored in permafrost, but now we’re beginning to be able to measure the cumulative impact to the atmosphere, and it’s significant,' said Dr Brendan Rogers, Woodwell Climate scientist and report contributor."
#UN Secretary Gen has warned re #COP29 that the rise in global #temperatures is set to soar to over 1.5 C above pre industrial levels. The world is approaching potentially irreversible changes e.g. collapse of Amazon rain forest. https://shorturl.at/ZeiQI #ClimateChange
Australia: Yesterday, on Halloween, the CSIRO & BOM published the 2024 State of the Climate Report. We are already at 1.51C of global warming for Australian landmass. I took the time to read the report. Here are the highlights, trends and Projections with 13 graphs and maps.
https://takvera.blogspot.com/2024/11/state-of-australian-climate-2024-paints.html
#climateCrisis #ClimateDiary
#temperatures
#Sealevelrise
#Australia
Carbon emissions of richest 1% increase hunger, poverty and deaths, says Oxfam | Greenhouse gas emissions | The Guardian…
If everyone on Earth emitted planet-warming gases at the same rate as the average billionaire, the remaining carbon budget to stay within 1.5C would be gone in less than two days, the Oxfam analysis said... The Guardian #greenhousegases #carbonemissions #billionaires #climatechange #globalwarming #environment #oxfam #temperatures #climatecrisis
#RecordBreaking #Temperatures Mask a Subtler Threat: #ChronicHeat
Long-term exposure to #HighTemperatures — even if they’re not abnormally high — is a growing health risk, particularly for outdoor workers and disadvantaged communities. [And plants and other living things]
Original article:
https://www.bloomberg.com/news/articles/2024-10-22/record-breaking-temperatures-mask-a-subtler-threat-chronic-heat
Archived version:
https://archive.ph/L0GHG#selection-1757.0-1763.169
#RecordBreakingHeat #GlobalWarming #ClimateChange
#ClimateCrisis
CNN: Over a year of astonishing ocean heat has given way to the largest coral bleaching on record…
The mass bleaching of coral reefs around the world since February 2023 is now the most extensive on record... CNN #coralbleaching #oceanheat #ocean #temperatures #environment #climatechange #globalwarming
Extreme heat may substantially raise mortality | EurekAlert!…
A new study found that deaths among unhoused people in two major West Coast cities were 10 to 100 times greater than heat-attributable deaths among the general population... EurekAlert! #people #society #urbanareas #homelessness #climate #temperatures #mortalityrate #health #climatepolicy #extremeweather #climatechange #globalwarming #death
Fuel For Hurricane Milton [remotesensing, NASA]
--
https://earthobservatory.nasa.gov/images/153429/fuel-for-hurricane-milton <-- shared technical article
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https://weather.ndc.nasa.gov/sport/ <-- shared link to NASA SPoRT page
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#GIS #spatial #mapping #HurricanMilton #hurricanemilton2024 #HurricaneWarning #hurricane #extremeweather #remotesensing #climatechange #ocean #oceantemperatures #temperatures #Florida #GulfOfMexico #seasurfacetemperatures #risk #hazard #storm #stormsurge #flooding #wind #SPoRT #VIIRS #spatialanalysis #spatiotemporal #weather #weatherforecasting #satellite #global #coast #coastal #nowCOAST #disaster #naturaldisaster #naturalhazard #prediction #mitigation #planning #management #cost #economy
@nasa
![map - These maps show sea surface temperatures on October 6, using data from the Short-term Prediction Research and Transition (SPoRT) project based at NASA’s Marshall Space Flight Center. Surface waters above 82 degrees Fahrenheit (27.8 degrees Celsius)—the temperature generally required to sustain and intensify hurricanes—are dark red. This map... is [also] overlaid with brightness temperature data, acquired by the VIIRS (Visible Infrared Imaging Radiometer Suite) on the NOAA-21 satellite in the early morning of October 7, to show the location of Milton’s storm clouds.](https://files.techhub.social/media_attachments/files/113/278/718/126/419/757/original/4ee80fa3fae01763.jpg "map - These maps show sea surface temperatures on October 6, using data from the Short-term Prediction Research and Transition (SPoRT) project based at NASA’s Marshall Space Flight Center. Surface waters above 82 degrees Fahrenheit (27.8 degrees Celsius)—the temperature generally required to sustain and intensify hurricanes—are dark red. This map... is [also] overlaid with brightness temperature data, acquired by the VIIRS (Visible Infrared Imaging Radiometer Suite) on the NOAA-21 satellite in the early morning of October 7, to show the location of Milton’s storm clouds.")
Happy #Friday afternoon from the #Northland!
It was a #chilly start to the end of the work/school week, but #temperatures have warmed back to the 60s for highs with plenty of #sunshine once again.
Skies remain #clear tonight, so enjoy the #Northern #Lights!
Greg Cocks 