Earth, Environment, and Geosciences
- Dead satellites are filling space with trash. That could affect Earth’s magnetic field | Sierra Solter [Guardian, opinion]www.theguardian.com Dead satellites are filling space with trash. That could affect Earth’s magnetic field | Sierra Solter
Our ozone is pennies thick – and soon we’ll put at least an Eiffel Tower’s worth of metallic ash into the ionosphere every year
Opinion piece by Sierra Solter, "a plasma physicist, engineer, and inventor who studies the intersection of heliophysics and aerospace". Relevant quote:
> Upon investigating just how much dust in the form of satellite and rocket debris the space industry has dumped into the ionosphere during re-entry, I was alarmed to find that it is currently multiple Eiffel Tower’s worth of metallic ash. I wouldn’t have even been able to calculate that at all without a scientist’s personally run website. Our ozone is mere pennies thick, and soon we will be putting at least an Eiffel Tower’s worth of metallic ash a year directly into the ionosphere. And all of that will stay there, indefinitely. > > How could we possibly think that burning trash in our atmosphere 24/7 is going to be fine?
- Many coral reefs are dying. This one is exploding with life.www.vox.com Many coral reefs are dying. This one is exploding with life.
Scientists have declared a mass global bleaching event. But some reefs are still hanging on — and even thriving.
- Why the death of the honeybee was greatly exaggeratedwww.vox.com Why the death of the honeybee was greatly exaggerated
Honeybees are too valuable to go extinct. Not every species will be so fortunate.
> So does that mean those who (ahem) predicted a possible “world without bees” were wrong? Yes. Does it mean that everything’s all good with Apis mellifera, better known as the Western honeybee?
> Not quite, because honeybees are still dying in massive numbers. According to the most recent survey data, beekeepers lost 48.2 percent of their managed honeybee colonies between April 2022 and April 2023, chiefly due to infestations of Varroa mites and the viruses associated with them. That’s nearly 10 percentage points higher than the previous year.
> So we have a situation where there are apparently more honeybee colonies than there have ever been but honeybees are still dying by the billions from CCD and assorted other threats.
- Spain's giant hail event worsened by marine heat waves, study findsphys.org Spain's giant hail event worsened by marine heat waves, study finds
Hail is a semi-frequent visitor to winter, and occasionally summer, seasons across the globe and tends to pass by in a short but sharp downpour that can often be overlooked. However, sometimes these meteorological phenomena are hard to ignore. This was the case on 30 August 2022, when Gerona, north-...
- Experts predict "extremely active" Atlantic hurricane seasonwww.cbsnews.com Experts predict "extremely active" Atlantic hurricane season
Researchers from Colorado State University predicted 23 named storms and 115 named storm days in the 2024 Atlantic hurricane season.
- Underwater robot in Siberia's Lake Baikal reveals hidden mud volcanoes — and an active faultwww.livescience.com Underwater robot in Siberia's Lake Baikal reveals hidden mud volcanoes — and an active fault
Video cameras mounted on an autonomous underwater robot captured footage of cracks associated with mud volcanism close to a potentially active fault on the shores of Lake Baikal.
- 'It's had 1.1 billion years to accumulate': Helium reservoir in Minnesota has 'mind-bogglingly large' concentrationswww.livescience.com 'It's had 1.1 billion years to accumulate': Helium reservoir in Minnesota has 'mind-bogglingly large' concentrations
Laboratory results for a helium reservoir discovered in northern Minnesota suggest concentrations of the sought-after gas are the highest the industry has ever seen.
- Scientists warn Australians to prepare for megadroughts that last more than 20 yearswww.abc.net.au Scientists warn Australians to prepare for megadroughts that last more than 20 years
Australian research shows naturally occurring megadroughts will be more severe and last longer due to climate change.
- Sawfish in Florida are 'spinning, whirling' before they die. Researchers look for answers.www.usatoday.com Sawfish in Florida are 'spinning, whirling' before they die. Researchers look for answers.
Strange behavior like spinning and whirling in fish, mainly the smalltooth sawfish, before their deaths is leading researchers to investigate.
- The Earth Will Feast on Dead Cicadaswww.wired.com The Earth Will Feast on Dead Cicadas
Two cicada broods, XIX and XIII, are emerging in sync for the first time in 221 years. Birds, trees, and dirt are about to get the banquet of a lifetime.
- Climate change is messing with how we measure time: studywww.france24.com Climate change is messing with how we measure time: study
Struggle to wrap your head around daylight savings? Spare a thought for the world's timekeepers, who are trying to work out how climate change is affecting Earth's rotation -- and in turn, how we keep…
Paper : https://www.nature.com/articles/s41586-024-07170-0
- Antarctic sea ice ‘behaving strangely’ as Arctic reaches ‘below-average’ winter peakwww.carbonbrief.org Antarctic sea ice ‘behaving strangely’ as Arctic reaches ‘below-average’ winter peak - Carbon Brief
Antarctic sea ice is “behaving strangely” and might have entered a “new regime”, says director of the US National Snow and Ice Data Centre.
- ‘How long before climate change will destroy the Earth?’: research reveals what Australian kids want to know about our warming worldtheconversation.com ‘How long before climate change will destroy the Earth?’: research reveals what Australian kids want to know about our warming world
The result shows climate change education in schools must become more holistic and empowering, and children should be allowed to shape the future they will inherit.
- Global sea levels jumped due to El Nino and warming climate, says NASAwww.france24.com Global sea levels jumped due to El Nino and warming climate, says NASA
Global average sea level rose by about 0.3 inches (0.76 centimeters) from 2022 to 2023 -- nearly four times the increase of the previous year -- NASA said Thursday, attributing the "significant jump"…
- Strange rock formations beneath the Pacific Ocean could change our understanding of the early Earththeconversation.com Strange rock formations beneath the Pacific Ocean could change our understanding of the early Earth
New research comparing the geology of southern Africa with the deep seafloor near New Zealand challenges conventional views of how the planet behaved when it was very young.
- Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communicationsdoi.org Deep-sea hiatus record reveals orbital pacing by 2.4 Myr eccentricity grand cycles - Nature Communications
Cenozoic deep-sea hiatuses reveal a ~2.4 Myr eccentricity signal corresponding to orbitally-forced intensification of deep-water circulation. The signal is disrupted by a chaotic orbital transition in the Solar System at about 56 Ma.
- Qiushi: Building a Beautiful China: Promoting Harmony Between Humanity and Nature (Xi Jinping)en.qstheory.cn Building a Beautiful China: Promoting Harmony Between Humanity and Nature
We should thoroughly implement the thinking on promoting ecological progress with Chinese characteristics for a new era, adhere to the people-centered approach, and uphold and act on the principle that lucid waters and lush mountains are invaluable assets. In our efforts to build a great country and...
cross-posted from: https://lemmygrad.ml/post/3983568
> From Xi Jinping: > > >Second, we must accelerate the transition to a green and low-carbon development model > > > >Upholding green and low-carbon development as a fundamental approach to resolving environmental problems, we will work faster to promote eco-friendly ways of production and life, and lay a green foundation for high-quality development. > > ---- > > Check it out and let me know what you think of Xi Jinping's speech.
- Confusing Jumbles of Rocks in Africa Could Represent Oldest Known Earthquakeswww.sciencealert.com Confusing Jumbles of Rocks in Africa Could Represent Oldest Known Earthquakes
Our world may seem fragile, but Earth has been around for a very long time.
- Spring Flowers Bloom Weeks Earlier Than Just Decades Ago, Study Findswww.sciencealert.com Spring Flowers Bloom Weeks Earlier Than Just Decades Ago, Study Finds
Flowering is triggered by environmental cues, like changes in temperature and increases in nutrients and water – this is why we think of spring blossoms bursting through melting snow, and why it's even called 'spring' in the first place.
- Rapid groundwater decline and some cases of recovery in aquifers globally - Naturewww.nature.com Rapid groundwater decline and some cases of recovery in aquifers globally - Nature
Analysis of about 170,000 monitoring wells and 1,693 aquifer systems worldwide shows that extensive and often accelerating groundwater declines are widespread in the twenty-first century, but that groundwater levels are recovering in some cases.
- Challenges and Prospects for Modeling Lake Water Temperature in a Changing Climate - Eoseos.org Challenges and Prospects for Modeling Lake Water Temperature in a Changing Climate - Eos
Climate change is having a significant impact on the temperature dynamics of lakes worldwide, affirming the need for accurate modeling to inform management and conservation strategies.
- Study shows climate change disrupts seasonal flow of riversphys.org Study shows climate change disrupts seasonal flow of rivers
Climate change is disrupting the seasonal flow of rivers in the far northern latitudes of America, Russia and Europe and is posing a threat to water security and ecosystems, according to research published in Science.
- After intense predictions, what happened to El Niño?phys.org After intense predictions, what happened to El Niño?
After many predictions, on September 19, the Australian Bureau of Meteorology formally announced an El Niño for the summer of 2023/2024, several months after it had been declared by other international meteorological agencies.
- How climate change is messing up the ocean's biological clock, with unknown long-term consequencesphys.org How climate change is messing up the ocean's biological clock, with unknown long-term consequences
Every year in the mid-latitudes of the planet, a peculiar phenomenon known as the phytoplankton spring bloom occurs. Visible from space, spectacular large and ephemeral filament-like shades of green and blue are shaped by the ocean currents.
- Scientists create new idea on how to hack a warming planet: drying the upper atmospherephys.org Scientists create new idea on how to hack a warming planet: drying the upper atmosphere
Government scientists have cooked up a new concept for how to potentially cool an overheating Earth: Fiddle with the upper atmosphere to make it a bit drier.
- EU countries have seen a decade of progress towards their 2030 sustainable energy goalphys.org EU countries have seen a decade of progress towards their 2030 sustainable energy goal
Countries in the European Union (EU) have made progress over the past decade toward Sustainable Development Goal 7 (SDG 7), which calls for "access to affordable, reliable, sustainable and modern energy for all" by 2030, according to a study published in the journal PLOS ONE by Marek Walesiak from W...
- Measuring and modeling methane emissions in wetlandsphys.org Measuring and modeling methane emissions in wetlands
Global atmospheric methane concentrations have risen steadily since 2006. Growth in agriculture, transportation, and industry are partly to blame, but so too is the rise in biogenic emissions, or emissions from natural sources.
- The Open Ocean, Aerosols, and Every Other Breath You Take - Eoseos.org The Open Ocean, Aerosols, and Every Other Breath You Take - Eos
Phytoplankton and other marine plants produce half of Earth’s atmospheric oxygen and have big effects on food webs and climate. To do so, they rely on nutrients from the sky that are hard to quantify.
- Waterlogged soils can give hurricanes new life after they arrive on landwww.sciencenews.org Waterlogged soils can give hurricanes new life after they arrive on land
New studies show that the long-hypothesized “brown ocean effect” is real, helping to refuel 2018’s Hurricane Florence and other storms after landfall.
- Measuring and Modeling Methane Emissions in Wetlands - Eoseos.org Measuring and Modeling Methane Emissions in Wetlands - Eos
Scientists zero in on a Delaware salt marsh to study what shapes methane emissions in wetland environments.
- Underwater volcano eruption 7,300 years ago is the largest in recorded historywww.livescience.com Underwater volcano eruption 7,300 years ago is the largest in recorded history
The Kikai-Akahoya eruption — the largest volcanic explosion in recorded history — ejected more than 80 cubic miles of volcanic rock and ash off the southwestern coast of Japan 7,300 years ago.
- Streams connected to groundwater show improved detoxification and microbial diversitywww.sciencedaily.com Streams connected to groundwater show improved detoxification and microbial diversity
Streams with ample connections to shallow groundwater flow-paths have greater microbial diversity and are more effective at preventing toxic forms of metals -- often products of upstream mining -- from entering and being transported downstream.
- Vietnam's 'rice bowl' cracks in monster heat wavephys.org Vietnam's 'rice bowl' cracks in monster heat wave
Southern Vietnam, including business hub Ho Chi Minh City and its "rice bowl" Mekong Delta region, suffered an unusually long heat wave in February, weather officials said Wednesday.
- The importance of critical minerals should not condone their extraction at all costs, says researcherphys.org The importance of critical minerals should not condone their extraction at all costs, says researcher
Global warming is real and climate change is worsening day-by-day with raging forest fires, unseasonably warm winters and flooding disasters taking place across Canada. Meanwhile, the carbon-zero transition required to move away from such a dire future is hampered by a key weakness—"critical mineral...