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Research Spotlights

Research spotlights are plain-language summaries of recent articles published in AGU’s suite of 24 journals.

A view of the blue haze of the Earth’s atmosphere
Posted inResearch Spotlights

Satellite Observations Validate Stratosphere Temperature Models

by David Shultz 21 November 20183 May 2022

Since the 1970s, the stratosphere has cooled as ozone levels dropped and carbon dioxide levels increased. Chemical models of the temperature decline conflicted with satellite observations—until now.

A sediment core offers clues into past patterns in ocean circulation and climate change
Posted inResearch Spotlights

Tiny Marine Shells Reveal Past Patterns in Ocean Dynamics

Aaron Sidder, freelance science writer by Aaron Sidder 16 November 20182 July 2024

A 400,000-year calcium carbonate record from the ocean floor sheds light on deep-ocean circulation and on mechanisms driving climate patterns and atmospheric carbon dioxide concentrations.

A landfill in Maryland’s Eastern Shore attracts seagulls
Posted inResearch Spotlights

Greenhouse Gas Inventories Underestimate Methane Emissions

Aaron Sidder, freelance science writer by Aaron Sidder 13 November 201831 October 2022

A new study in the Baltimore-Washington metropolitan area reveals prior estimates may significantly underrepresent methane emissions, particularly from landfills and natural gas systems.

An aerial view of the massive Katla glacier, which might be a bigger source of CO2 than previously estimated
Posted inResearch Spotlights

Volcano in Iceland Is One of the Largest Sources of Volcanic CO2

by Terri Cook 8 November 201815 November 2022

High-precision airborne measurements, in combination with atmospheric modeling, suggest that the Katla subglacial caldera may be one of the planet’s biggest sources of volcanic carbon dioxide.

The flat Australian outback overlies a series of ancient mountain chains.
Posted inResearch Spotlights

Unraveling the Origins of Australia’s Ancient Mountain Chains

by Terri Cook 5 November 201813 October 2022

New data synthesis suggests that varying rates of trench retreat along the margin of the Gondwana supercontinent were responsible for the curvature of the Tasmanide mountain chains.

researcher measures fall thaw depth at the Eight Mile Lake study site in interior Alaska
Posted inResearch Spotlights

How Nitrogen Contributes to Permafrost Carbon Dynamics

Aaron Sidder, freelance science writer by Aaron Sidder 2 November 201818 October 2021

Nitrogen released into the soil from thawing permafrost in the Arctic could accelerate soil carbon decomposition and alter carbon dynamics, with global implications.

An updated Antarctic Magnetic Anomaly Map helps researchers study the structure of lithosphere around the South Pole.
Posted inResearch Spotlights

A More Detailed Look at Earth’s Most Poorly Understood Crust

by Terri Cook 24 October 20187 February 2023

The second-generation Antarctic Digital Magnetic Anomaly Project offers a powerful new tool for probing the structure and evolution of the southernmost continent’s lithosphere.

A woman draws water from a well in northern India, where unsustainable aquifers are vulnerable to drought conditions.
Posted inResearch Spotlights

A Closer Look at the Sustainability of Our Groundwater Aquifers

by L. Strelich 19 October 20186 February 2023

Researchers use a new approach to assessing the world’s largest aquifers in hopes of improving groundwater management during drought periods.

Cache Lake in Ontario, Canada, surrounded by northern hardwood forest.
Posted inResearch Spotlights

Hydrology Dictates Fate of Carbon from Northern Hardwood Forests

Aaron Sidder, freelance science writer by Aaron Sidder 12 October 201821 March 2022

As spring snowmelt and fall rains inundate northern hardwood forests with moisture, soil bacteria get moving and increase carbon exports to the atmosphere and into nearby water bodies.

Aerial photo of an oil palm plantation planted right up to a river’s bank, with no habitat buffer.
Posted inResearch Spotlights

Conserving Riverside Habitat Could Bolster Bottom Lines

Aaron Sidder, freelance science writer by Aaron Sidder 2 October 20182 November 2021

Palm oil is in demand, and its agricultural footprint is expanding in the tropics. New research suggests that habitat buffers could improve conservation and prevent erosion that cuts into economic returns.

Posts pagination

Newer posts 1 … 103 104 105 106 107 … 195 Older posts
A view of a Washington, D.C., skyline from the Potomac River at night. The Lincoln Memorial (at left) and the Washington Monument (at right) are lit against a purple sky. Over the water of the Potomac appear the text “#AGU24 coverage from Eos.”

Features from AGU Publications

Research Spotlights

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Editors' Highlights

The Power of Naming Space Weather Events

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Editors' Vox

Water Tracks: The Veins of Thawing Landscapes

25 June 202525 June 2025
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