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.
Geohealth research is typically focused on environment-health impacts, but including physical and social mechanisms, and health and non-health trade-offs, can result in better policy benefits.
Surprising amounts of mercury settling into deep-sea trenches may provide a fuller picture of the metal’s path through the environment, but pulling it to the surface is no easy feat.
In Peru, gold mining harms rain forests and human health. Satellite data can now track forest recovery in protected areas and the migration of informal miners to less regulated areas.
Isotopic analysis indicates that mercury found in deep-sea organisms may have an origin in carrion from near the surface.
Annual growth rings in trees tell us more than climate history; they can also document the rise and fall of human industrial activities.
Concentrations of methylated mercury in high latitudes show the importance of sunlight and biological activity for cycling the metal.
As glacial ice melts, toxic mercury is released into the environment. But a new study shows vegetation may be an effective cleanup crew.
Abnormally high levels of mercury in Ordovician rocks may imply that a huge surge of volcanism took place at a time when much of the planet’s ocean life vanished.
Despite tightening emissions rules, mercury concentrations are rising in rainfall wetting western and central regions of the United States. The pollutant may waft in from Asia, scientists speculate.