• About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
  • AGU.org
  • AGU Publications
    • AGU Journals
    • Editors’ Highlights
    • Editors’ Vox
  • Career Center
  • AGU Blogs
  • Join AGU
  • Give to AGU
  • About
  • Special Reports
  • Topics
    • Climate
    • Earth Science
    • Oceans
    • Space & Planets
    • Health & Ecosystems
    • Culture & Policy
    • Education & Careers
    • Opinions
  • Projects
    • ENGAGE
    • Third Pod from the Sun
    • Eos en Español
    • Eos 简体中文版
    • Print Archive
  • Newsletter
  • Submit to Eos
Skip to content
Eos

Eos

Science News by AGU

Sign Up for Newsletter

radioactivity

Neat rows of crops grow between rows of trees
Posted inNews

Using Nuclear Fallout to Measure Soil Erosion in Tunisia

by Issa Sikiti da Silva 5 November 202028 January 2022

Cesium-137 acts as a tracer to evaluate the efficiency of conservation methods.

Close up of granular structure of meteorite rock
Posted inEditors' Highlights

Traces of Impacts on Warm Planetesimals Early in Solar System

by Laurent G. J. Montési and J. Filiberto 9 October 20208 March 2022

Meteorite NWA 11004 contains evidence of melting preceding an impact dated to 4546±36 Ma. Short lived radioactive decay had already heated the parent body of this meteorite before the impact.

A man backpacks up a rocky trail to an air-sampling station
Posted inNews

Radioactive Bookkeeping of Carbon Emissions

by Sarah Derouin 22 June 20207 March 2022

A new sampling method uses carbon-14 to single out which carbon dioxide molecules in the atmosphere derive from fossil fuels. The method could help track emissions goals for climate mitigation.

Cave formations in Furong Cave near Chongqing, China
Posted inResearch Spotlights

How to Read Atmospheric History Written in Flowstones

by Elizabeth Thompson 10 February 202028 January 2022

Oxygen isotope ratios in cave deposits reflect past climates, but interpreting these data is not straightforward. A new study explores what these ratios really tell us.

Rocky, steep-sided desert valley
Posted inNews

The Dawning of the Age of Old Aquifers

by Sarah Derouin 21 August 201927 January 2022

A new technique using 81Kr can measure the age of old groundwater in arid regions. The method can be used as a proxy for past climates and weather patterns.

Mushroom cloud from a nuclear test over the Pacific Ocean
Posted inNews

Marshall Islands Nuclear Contamination Still Dangerously High

by Kimberly M. S. Cartier 16 July 201928 February 2022

Today’s radiation levels at some locations were higher than in areas affected by the Chernobyl and Fukushima nuclear disasters.

Posted inEditors' Highlights

Using Radioactive Tracers to Determine the Ages of Streamflow

by Ilja van Meerveld 18 March 20197 March 2022

Radioactive isotope tracers can be used to determine the relationship between the ages of water that is stored in soil and bedrock, water in streams, and the water used by vegetation.

https://doi.org/10.1029/2018JC013888
Posted inEditors' Highlights

Increased Release Rates of Radium Isotopes on Arctic Shelves

by P. Brewer 22 August 201821 March 2022

A longer ice-free season on Arctic shelves causes an increase in sediment-water interaction.

Posted inEditors' Highlights

A New Angle on the Earth’s Radiation Belts

by M. Liemohn 21 May 201813 April 2022

A new empirical model of energetic electrons from Van Allen Probes data includes pitch angle analysis, revealing insights about radiation belt energization and loss processes.

Marine mollusk shells record the magnitude of the radiocarbon marine reservoir effect in their habitat.
Posted inEditors' Vox

Radiocarbon in the Oceans

by E. Q. Alves 17 April 201827 January 2022

Offsets in radiocarbon concentration within the ocean or between the ocean and the atmosphere are particularly useful proxies for a variety of studies.

Posts navigation

1 2 Older posts

From AGU Journals

MOST SHARED
Reviews of Geophysics
“Global and Regional Trends and Drivers of Fire Under Climate Change”
By Matthew W. Jones et al.

HIGHLY CITED
Global Biogeochemical Cycles
“Emission of trace gases and aerosols from biomass burning”
By M. O. Andreae, P. Merlet

HOT ARTICLE
Geophysical Research Letters
“Relating Slip Behavior to Off-Fault Deformation Using Physical Models”
By Emily O. Ross et al.


About Eos
Contact
Advertise

Submit
Career Center
Sitemap

© 2022 American Geophysical Union. All rights reserved. Proudly powered by Newspack by Automattic