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sulfur

Photo showing technologies for monitoring volcanic gas emissions.
Posted inEditors' Highlights

Send in the Drones: Safely Monitoring Volcanic Gas Emissions

by Paul Asimow 8 June 20238 June 2023

New drone technology was combined with satellite and ground-based data to improve volcanic gas flux monitoring at the remote Bagana Volcano in Papua New Guinea.

A person stands in a dark cave holding a flashlight.
Posted inNews

Searching for the Sculptor of France’s Caves

Jenessa Duncombe, Staff Writer by Jenessa Duncombe 31 March 202331 March 2023

Spelunking scientists searched for the original source of the French Pyrenees’ magnificent caves.

Satellite image of clouds and ship tracks in the Pacific Ocean south of Alaska
Posted inNews

Tracking Climate Through Ship Exhaust

by Humberto Basilio 27 September 202218 October 2022

International regulations have reduced aerosol pollutants released from ships. Now, researchers want to use ship tracks to better understand the ambiguous effects that cleaner air has on climate.

An artist’s rendering of North America in the weeks following the Chicxulub impact shows freezing conditions and skies hazy with sulfate aerosols.
Posted inScience Updates

A Post-Impact Deep Freeze for Dinosaurs

by Aubrey Zerkle 2 September 202222 February 2023

New research supports the hypothesis that dinosaurs were done in by climate change after an asteroid impact kicked up a massive plume of sulfur gases that circled the globe for several decades.

硅藻进化到用镉来替代锌
Posted inResearch Spotlights

硅藻是如何进化到利用有毒金属镉代替锌的?

Sarah Stanley, Science Writer by Sarah Stanley 1 April 20213 May 2022

网络分析表明,锌和镉硫化物在地质史上同步风化,在锌缺乏的情况下,镉可以作为光合途径的合适替代品。

Diatoms evolved to substitute cadmium for zinc.
Posted inResearch Spotlights

How Did Diatoms Evolve to Swap Zinc for the Toxic Metal Cadmium?

Sarah Stanley, Science Writer by Sarah Stanley 17 March 20213 May 2022

New network analysis suggests that zinc and cadmium sulfides weathered simultaneously in geological history, making cadmium a suitable substitute in photosynthetic pathways when zinc was scarce.

Plot showing X-Ray Diffraction patterns for products from Mars chamber electrostatic discharge experiments using hydrated magnesium sulfate salt starting materials.
Posted inEditors' Highlights

Martian Dust Activities Induce Electrochemistry

by M. Schmidt 7 January 202115 March 2023

Amorphous materials generated from sulfur and chloride salts by electrostatic discharge in a Mars chamber suggest widespread electrical processes during dust activities.

Charts showing how different levels of volcanic emissions result in different shortwave, longwave, and total daily mean net radiative forcings computed for different scalings of sulfur dioxide volume mixing ratios.
Posted inEditors' Highlights

The Overlooked Role of Sulfur Dioxide Emissions from Volcanoes

by L. Russell 10 March 202022 April 2022

Volcanoes can warm as much as they cool. Prior simulations have neglected the important warming effects of sulfur dioxide emissions, making some results colder than they should be.

Researchers model sulfate levels in freshwater environments, and how they impact wild rice
Posted inResearch Spotlights

North American Wild Rice Faces Sulfide Toxicity

by Jenny Lunn 6 October 20179 November 2022

Researchers have developed a model to inform the regulation of sulfate levels in freshwater environments that are threatening the iconic plant.

Researchers assess the role of water vapor in predicting volcanic eruptions
Posted inResearch Spotlights

Can Water Vapor Help Forecast When a Volcano Will Blow?

by E. Underwood 10 July 201715 November 2022

A widely used technique to monitor sulfur dioxide was tweaked to focus on water vapor at Peru’s Sabancaya Volcano. Results show that the volcano steamed up prior to its 2016 eruption.

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