Cornell University on LinkedIn: Live plant pathogens can travel on dust across oceans | Cornell Chronicle (2024)

Also, science has a problem in being so anti-alarmist and pro-nuance that papers discussing full-planet natural emissions shifts aren't even emerging anymore. There's so much "how" and so little "what" out there. If we need to simulate what happens in terms of Greenhouse adjustments if we dump each "random crap" option into thermoelectric cooling systems, let's know that, and run the simulations, and then go through the ecological red tape and execute. Birds r tough, as long as they have water at nesting grounds. There's this famous one that flew with a damned spear in its neck like, thousands of miles.https://lnkd.in/g4HcqW8N

It’s microscopic, but if given free reign, it can take down entire ecosystems. 🦠Harmful algal blooms (HABs) happen when colonies of algae grow out of control. And once they do, they’re a BIG risk to both people and wildlife. As we celebrate Earth Day today, we’re also proud to be a part of a project helping the environment. 🌎We partnered with Signature Science, LLC and James Madison University on an approach to predict HABs before it’s too late. With funding from the National Oceanic and Atmospheric Administration (NOAA), we set out to find a solution. 💡Unlike existing approaches that only detect blooms already in progress, our surveillance approach catches them early. And it’s a much less costly and complicated approach to deploy.🔍 How does it work?The approach, HABSSED, uses advanced environmental DNA sequencing to quickly estimate the abundance of HAB-related organisms in water samples. That information helps determine a pending harmful algal bloom.Learn more about this approach and the results in our case study: https://lnkd.in/eNmMbR4G

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👩🎓 PhD Thesis: Calciferous organisms are a good tool in climate research (but you should know how to operate it!)🔧 🐚 The fossil calciferous skeletons of single-celled foraminifers are a beautiful history book with information on CO2-levels in the oceans of the distant past. "But if you want to fully understand that history, you must first understand exactly how these single-celled organisms build their skeletons." That warning is issued by earth scientist #LindaDämmer in the dissertation she will defend on November 29th at Utrecht University.⚖ Dämmer: "To understand the complete accounting of CO2and calcium in the oceans, it is very important to know exactly what these single-celled organisms are doing. In the open oceans, as much as half of the amount of calcium carbonate precipitated, consists of these tiny forams. In that respect, they can match coral reefs in other places in the oceans in terms of importance to ocean chemistry."🌡 Dämmer's supervisor, Prof. Dr. Gert-Jan Reichart of NIOZ Royal Netherlands Institute for Sea Research and Utrecht University: "Linda's research is part of the NESSC, Netherlands Earth System Science Center, in which researchers from NIOZ, Utrecht University, Radboud University, Vrije Universiteit Amsterdam (VU Amsterdam) and are investigating how warm the Earth is becoming as a result of climate change. Comparing seawater temperatures during past periods with high CO2conditions plays an important role. At NIOZ, there is a lot of experience in growing foraminifers under controlled conditions. In this way, we improve reconstructions of seawater temperatures in the past and thus also improve seawater temperature predictions for the future.Read more on the NIOZ website 👉 https://lnkd.in/e_2UMjBD#forams #climate #searesearch

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🌊Are you ready for a deep dive into the hidden wonders of the Southern Ocean?Led by Dr. Ryan Cloete and Prof. Alakendra Roychoudhury from Stellenbosch University, the recent study published in Science Magazine, has revealed the underappreciated importance of inorganic #Zinc particles in global biological processes and the carbon cycle.🗺The Southern Ocean is responsible for the greatest share of global phytoplankton productivity, a process that is essential for absorbing atmospheric carbon dioxide. #Zinc, present in trace quantities in seawater, is a critical micronutrient for many biochemical processes in marine organisms, particularly for the growth of polar phytoplankton blooms. As these blooms die off, the #Zinc is released back into the ocean.🦠 These findings demonstrate how biochemical processes at the molecular level can have far-reaching consequences on global phenomena like #climatechange. As a result of warming climate, increased erosion and dust deposition in the oceans can lead to a depletion of #Zinc, ultimately affecting the survival of phytoplankton and other marine organisms.Read more: https://cutt.ly/ueaK5ncWReporter: yihang HE#GAUC #Stellenbosch #ClimateChange #ZincRevolution

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Microorganisms are the engines that drive most marine processes. Ocean modelling must evolve to take their biological complexity into account. https://lnkd.in/gfytM3uf

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Marine Heatwaves (MHWs)As developments go more nonlinear, paradoxically the dominant science paradigm will declare itself even more "uncertain" about what is happening because there is objectively more uncertainty in the system.But what this uncertainty is now about is the likely period when the human race becomes effectively extinct. Which means you have to add in the additional socially rooted reason for the conservatism of the scientists' class - their culture rigidly prioritises politeness (i.e., lying) over an honest presentation of what is coming: i.e., mass death of human beings. "However, the full ecosystem-scale effects of MHWs have not been estimated within an impacted system to date, leaving substantial uncertainty in the short- and long-term consequences of MHWs on ecosystem structure and function."

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Accounting for oxygen in modeling coastal ecosystems - KAUST (King Abdullah University of Science and Technology): Marine ecosystem models should account for vast fluctuation in dissolved oxygen.https://lnkd.in/eGg5H9YF

#GEOMARNews | New study sheds light on the role of ecological adaptations in the marine carbon cycleMarine organisms play a crucial role in the global #carbon cycle. Phytoplankton absorb carbon dioxide from the atmosphere and sequester it in organic matter that sinks to the deep ocean where it can be stored for long periods of time. Until now, this process – the biological carbon pump – was thought to be particularly efficient in oxygen-poor areas. A new study by researchers at the GEOMAR suggests that the influence of certain #zooplankton species on the biological carbon pump has been underestimated. The scientists have published their findings in the journal Communications Earth & Environment. Read more: https://lnkd.in/e8am6dt9#OurWorldIsTheOcean

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How gases travel laterally through a lakeAt night or during cold winter days, lake water cools faster near the shore than in the middle of the lake. This creates a current that connects the shallow shore region with the deeper part of the lake. An international team led by #Eawag researchers were able to show for the first time that this horizontal circulation transports gases such as oxygen and methane.“The most important result of our work is that the conventional idea that the shore region and the middle of the lake are disconnected from each other needs to be changed," says Dr. Tomy Doda, a scientist from the Aquatic Physics group of Damien Bouffard at Eawag and lead author of the study.The speed at which the gases moved was also particularly interesting. “This transport is ten times faster than what you would expect if you didn’t include this flow,” says Doda: “We therefore believe that this process needs to be taken into account in future studies.”👉 Read the full article: https://lnkd.in/dAurpjwj #lakecirculation #convectivecirculation #gastransport #nutrients #pollutants #lakerotsee #rotsee #aquaticresearch

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Wildfires can transform a benign metal in soils and plants into toxic particles that easily become airborne, according to a new study from Stanford University."Our study suggests far more attention should be paid to wildfire-modified chromium, and we presume additional metals as well, to more thoroughly characterize the overall threatswildfirespose to human health," said lead study author Alandra Lopez, a postdoctoral scholar in Earth system science at the Stanford Doerr School of Sustainability.#research #science #health #humanity #biodiversity #climatechange #wildfires #airpollution #airquality https://lnkd.in/eBzskgcd