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nutrients

A large plume of gray-brown smoke and ash covers most of the sky above the waterfront in Hobart Harbor, Tasmania, Australia.
Posted inScience Updates

The Open Ocean, Aerosols, and Every Other Breath You Take

by Rachel Shelley, Morgane M. G. Perron, Douglas S. Hamilton and Akinori Ito 1 March 20241 March 2024

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.

A farmer spraying crops with fertilizer.
Posted inEditors' Highlights

What Happens to Nutrients After They Leave Agricultural Fields?

by Alberto Bellin 16 February 202413 February 2024

To better quantify the fate of nutrients after they are released from agricultural fields, scientists examine storage and nitrate export regimes in agricultural hydrology systems.

A person with a mask on walking through a smog covered parking lot.
Posted inEditors' Vox

OneHealth, Climate Change, and Infectious Microbes

by Antarpreet Jutla, Gabriel Filippelli, Katherine D. McMahon, Susannah G. Tringe, Rita R. Colwell, Helen Nguyen and Michael J. Imperiale 31 January 20249 September 2024

AGU and ASM welcome submissions to a joint special collection focusing on the impacts of climate change and microbes on human well-being.

Schematic illustrating the model applied in this study.
Posted inEditors' Highlights

New Constraints on Sulfur Cycling in the Prebiotic Earth

by Susan Trumbore 12 January 20248 January 2024

Experiments constraining rates of aqueous reactions and photolysis coupled with a global model constrain the abundance and chemical speciation of sulfur in early Earth’s atmosphere and oceans.

Schematic diagram from the study.
Posted inEditors' Highlights

How Nutrients Get Back Up to the Surface Ocean

by Nicolas Gruber 10 January 20248 January 2024

A new dual isotope tracer technique is used to assess the role of a number of poorly understood nutrient supply mechanisms fueling biological productivity in the ocean.

A fish swims above a green mat.
Posted inNews

Flash Floods May Support One of the World’s Rarest Fish

by Alix Soliman 5 January 20245 January 2024

Only a few hundred Devils Hole pupfish live in an isolated pool in the desert, where occasional floodwaters roil their habitat.

Visualization of the Kuroshio current.
Posted inEditors' Highlights

Nutrients at Depth Can Be Uplifted by the Kuroshio Large Meander

by Takeyoshi Nagai 8 December 20238 December 2023

Aperiodic, southward deflection of the Kuroshio, a.k.a. the Kuroshio large meander, uplifts the nutrients in deep layers to induce offshore phytoplankton bloom.

Illustration of vertical nutrient and organic carbon profiles.
Posted inEditors' Vox

Ocean Deserts Could Help Capture CO2 and Mitigate Global Warming

by Minhan Dai, Ya-Wei Luo, Hongyang Lin, Eric P. Achterberg, Thomas J. Browning, Matthew J. Church, Zhongping Lee and Wei-Lei Wang 1 December 20234 December 2023

Various nutrient sources in the upper waters of oceanic subtropical gyres, which are the Earth’s largest oligotrophic ecosystems, play a crucial role in governing the sequestration of atmospheric CO2.

Diagram from the study.
Posted inEditors' Highlights

Sulfur is Demanding its Place in Crop Nutrient Budgeting

by Luis Lassaletta 16 November 202317 November 2023

Scientists advocate for a more significant consideration of sulfur from a multidisciplinary perspective as a necessary step towards sustainable crop management.

A pipe brings water into a stream.
Posted inNews

Even Treated Sewage Harms Freshwater Ecosystems

by Erin Martin-Jones 15 November 202328 November 2023

In a controlled experiment, researchers diverted wastewater from an advanced treatment facility into a healthy stream and monitored the unfolding ecological effects.

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