Mastodawn

Not all giant icebergs, or "megabergs," release fertilizing nutrients into the ocean as they melt; their capacity to stimulate marine life and absorb atmospheric carbon varies drastically depending on their individual life cycles and histories.
#Biogeochemistry #Oceanography #Glaciology #Climatology #EarthScience #sflorg
https://www.sflorg.com/2026/04/es04202601.html

Not all icebergs are equal – and that matters for the climate, new study finds

As the world’s largest and most famous icebergs break up and melt in Antarctica, new research shows what impact they have on the ocean

Scientific Frontline 6d ago

Rivers worldwide are progressively warming and losing oxygen, a transformation that turns them into significant, under-accounted sources of greenhouse gases (GHGs). The influx of agricultural and urban nutrients, combined with rising temperatures, fuels microbial activity that releases carbon dioxide, methane, and nitrous oxide into the atmosphere.
#Biogeochemistry #Hydrology #Climatology #Environmental #sflorg
https://www.sflorg.com/2026/04/env04152602.html

Rivers as an Underestimated Source of Greenhouse Gases

KIT researchers demonstrate how climate change and land use are turning rivers into sources of greenhouse gases.

Scientific Frontline Apr 9

This research provides the first biologically based estimate of global oceanic mercury distribution by analyzing blood mercury concentrations in more than 11,000 #seabirds across 108 species.
#Environmental #MarineBiology #Ornithology #Ecotoxicology #Biogeochemistry #sflorg
https://www.sflorg.com/2026/04/env04092602.html

Seabirds reveal global mercury distribution in oceans

Mercury released into the oceans affects marine environments worldwide.

Scientific Frontline Mar 18

The reintroduction and activity of beavers in river corridors transform headwater streams into expansive wetlands that function as highly efficient, long-term carbon sinks. By naturally flooding landscapes and altering groundwater flows, beavers facilitate the extensive trapping of both organic and inorganic carbon materials.
#Environmental #Ecology #Biogeochemistry #Hydrology #sflorg
https://www.sflorg.com/2026/03/env03182601.html

Beavers can turn riverbeds into powerful carbon sinks

The researchers’ findings demonstrate that these beaver-engineered wetlands can store carbon

Scientific Frontline Mar 9

Biogeochemistry is the interdisciplinary scientific study of the chemical, physical, geological, and biological processes and reactions that shape the natural environment.
#Biogeochemistry #sflorg
https://www.sflorg.com/2026/03/cat03092601.html

Biogeochemistry: In-Depth Description

Highly interdisciplinary nature, biogeochemistry is divided into several specialized sub-disciplines based on the specific sphere of the Earth

Scientific Frontline Mar 9

Marine snow is a continuous shower of organic dust and detritus that falls from the upper layers of the ocean to the seafloor, acting as a vital "biological pump" that transports and stores atmospheric carbon in the deep #ocean
#MarineBiology #EarthScience #Oceanography #Biogeochemistry #Microfluidics #sflorg
https://www.sflorg.com/2026/03/es03092601.html

Understanding how “marine snow” acts as a carbon sink

Hitchhiking bacteria dissolve essential ballast in ubiquitous “snow” particles, which could counteract the ocean’s ability to sequester carbon.

MPI für Meteorologie Mar 5

We were happy to welcome MSc and BSc students from Wageningen University & Research to the Max Planck Institute for Meteorology in Hamburg yesterday. 🌍

Through presentations on #ClimateModeling, ocean #biogeochemistry, and #cloud observations, the students got an inside look at our research. In small-group discussions with early-career scientists, they could also ask questions about PhDs and careers in #ClimateScience. We finished the visit with a rooftop view over Hamburg 📸
© M. Schulz, MPI-M

Scientific Frontline Feb 9

The unprecedented surge in #atmospheric #methane during the early 2020s was primarily driven by a temporary decline in #hydroxyl (OH) radicals, which reduced the atmosphere's ability to break down the gas, coupled with increased natural emissions from wetlands due to wetter #climate conditions.
#AtmosphericChemistry #Biogeochemistry #Chemistry #Environmental #EarthScience #sflorg
https://www.sflorg.com/2026/02/chm02092601.html

Why methane surged in the early 2020s

Methane is the second most important human-driven greenhouse gas after carbon dioxide

David Grayless Jan 14

Edward Smith Deevey Jr. (3 December 1914 – 29 November 1988), born in #AlbanyNewYork, was a prominent American #ecologist and #paleolimnologist, and an early protégé of #GEvelynHutchinson at #YaleUniversity. He was a creative pioneer in several areas, including quantitative #palynology, cycling of natural #isotopes, #biogeochemistry, #populationDynamics, #systematics and #ecology of freshwater #zooplankton, and he promoted the use of life tables in ecology. In 1938.

Dewi Langlet Dec 4

Région #Bretagne call for #postdoc fellowships is now open.
I'm happy to support any application on benthic ecosystem functioning #bioturbation #foraminifera #meiofauna #biogeochemistry #planaroptodes ...
Feel free to reach out and check out the call to check for eligibility:
https://bienvenue.bretagne.bzh/funding-opportunities/bienvenueplus/
#marinejobs #postdocFellowships

Bienvenüe + · BIENVENÜE

BIENVENÜE