Annual growth rings in trees tell us more than climate history; they can also document the rise and fall of human industrial activities.
A new model quantifies the relative contributions of denitrification and other processes of nitrogen uptake, such as by plants, from groundwater in riparian areas around streams.
Preliminary results from a recent study may begin to shed light on why megalodons died out before the most recent ice age.
Blending geoscience and archaeology, researchers apply a new technique to pinpoint where ancient and unique gold artifacts were crafted.
Studying the Prairie-Pothole Region of North America could help improve water resource management across the continent.
Researchers probe millennia-old deep-ocean sponges for links between ocean nutrients and climate.
Researchers identify the first evidence of microbial respiration in desiccated Antarctic permafrost soils.
A long-term study in Switzerland reveals the promise of a new method to determine isotopic composition of the potent greenhouse gas.
The authors of a recent paper in Reviews of Geophysics describe how isotope hydrology offers new insights into interactions at the interface between soil, vegetation, and the atmosphere.
Isotope data bring scientists one step closer to revealing the microbial processes behind nitrous oxide emission in the tundra.