A new study finds that Mars’s mantle is neon-rich, putting constraints on the planet’s formation history.
Gases
Posted inENGAGE, News
Etna Under Pressure: Does Gas Buildup Foreshadow Eruption?
Pressure from both magma and gas can trigger eruptions. Monitoring degassing can help predict eruptions but only if the magma system is well understood first.
Posted inScience Updates
Earth’s Volatile Balancing Act
How do greenhouse gases and water circulate from minerals deep below Earth’s surface into the atmosphere and oceans—and then back again? Our understanding continues to evolve.
Posted inResearch Spotlights
Hardwood Forest Soils Are Sinks for Plant-Produced Volatiles
New research identifies temperature, moisture, and soil fungi as important factors in influencing how biogenic volatile organic compounds cycle between plants and the atmosphere.
Posted inResearch Spotlights
Arctic Plankton Populations Vary by Season
Planktonic foraminifera and sea snail numbers swell from April to June in the Barents Sea, but contrary to predictions, the organisms do not appear to be affected directly by high methane levels.
Posted inScience Updates
Messages in the Bubbles
Laacher See volcano is quiet, but gas bubbles rising through the overlying lake are a reminder of its potential hazard. Scientists took a close look at the bubbles to test eruption monitoring methods.
Posted inNews
Lethal Volcanic Gases at an Italian Country Club
High levels of carbon dioxide and hydrogen sulfide emitted by volcanic outgassing caused a deadly accident near Rome, Italy, in 2011, geoscientists have shown.
Posted inScience Updates
Gas Bubble Forensics Team Surveils the New Zealand Ocean
An international research group recorded the acoustic signatures of gas bubbles rising from a hydrothermal vent field to gather clues about greenhouse gases escaping into the atmosphere.
Posted inResearch Spotlights
Tool to Capture Marine Biological Activity Gets Coastal Upgrade
Upwelling hinders an efficient method to estimate a key measure of biological productivity in coastal waters, but accounting for surface temperatures could boost accuracy.
Posted inResearch Spotlights
A Benchmark for Trace Greenhouse Gases in the Arctic Ocean
Samples of seawater from the North American Arctic show that the region is neither a major source nor sink of methane and nitrous oxide to the overlying atmosphere.