A new baseline of volcanic contributions to the global mercury cycle reveals how drastically human activities have increased the element’s concentration in the atmosphere.
geochemistry
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Meteor Impact Site Holds 200-Million-Year-Old Atmospheric Snapshot
Minerals formed in short-lived hydrothermal systems set off by a meteor impact in France preserved information about noble gases in the ancient atmosphere.
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Ultra-High-Resolution Age Model in Clams Yields Daily Paleo-Data
Using geochemical techniques, scientists identify daily cycles in fossilized giant clams, which permits climate reconstructions at the weather timescale.
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Natural Nitrogen Emissions Are Rising in California
Wildfires and soil microbes are releasing more nitrogen oxides in California as the climate gets warmer and drier.
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Ancient Mars May Have Had a Cyclical Climate
Hexagonal structures in sediments are evidence of repeated wet and dry conditions on the Red Planet.
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Low-Tech, Energy-Free Tool Collects and Cleans Fog Water
A new fog harvester could benefit communities that lack access to clean freshwater.
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Ароматы в ледяном керне рассказывают о жизнедеятельности человека
В ледяном керне самой высокой горной вершины Европы содержатся источающие запах молекулы, свойства которых отражают экономические взлеты и падения Советского Союза.
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Établir une carte d’identité du bois pour freiner la déforestation illégale
Des chercheurs ont créé un nouvel outil d’analyse pour améliorer la traçabilité du bois qui pourrait permettre d’appliquer la législation de l’Union européenne visant à lutter contre la déforestation.
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Evidence of Earth’s Oldest Glaciers Found in South Africa
The ancient glaciers hint at an Archaean Earth that may have looked similar in some ways to our own time.
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Rare Granite Body Discovered on Moon’s Farside
The granite couldn’t have formed the same way that it does on Earth—with liquid water and plate tectonics. So how did it get there?