AGU Advances Archives - Page 30 of 34

Projections for increases in protein production, methane emissions, and the effects of improving efficiency on reducing livestock methane emissions

What’s the Beef About Methane?

by Eric Davidson 26 May 202120 October 2021

Progress has been made to reduce methane emission intensity from livestock (the amount of methane per unit of protein), but where are the greatest opportunities to reduce this methane source further?

Two maps of North America showing patterns of CO2 uptake by photosynthesis during the growing season based on two different models of atmospheric CO2 variations.

Editors' Highlights

How Do Croplands Reduce CO₂ During the Growing Season?

by Susan Trumbore 20 May 202123 March 2023

Regional variations in the seasonal drawdown of atmospheric CO₂ can be used as a benchmark for evaluating models and satellite-derived estimates of land carbon uptake.

Figure showing the evolution of the groundwater reservoirs during the monsoon season.

Editors' Highlights

Understanding How Himalayan Water Towers Fill and Drain

by Alberto Montanari 18 May 20213 December 2021

Seismic data reveal how water is accumulated and released by Himalayan groundwater reservoirs which are key for predicting future freshwater resources for a large part of South Asia.

Plot showing magnitude of earthquakes before and after the inferred triggering time in southern California.

Editors' Highlights

Earthquake Rates Enhanced by Triggered Creep

by Thorsten W. Becker 13 May 202113 January 2022

Analysis of California earthquakes solidifies links between shaking due to remote earthquakes and increased local earthquake activity that persists for times longer than for regular aftershocks.

Map of the eastern Mediterranean showing modeled wave height from a magnitude 7.7 normal fault earthquake sourced offshore of southern Crete.

Editors' Highlights

Was the AD 365 Mediterranean Earthquake Normal?

by T. Parsons 10 May 202114 September 2022

The great AD 365 earthquake at Crete has implied a locked Hellenic subduction zone that can produce more earthquakes to threaten Mediterranean coastlines. But what if wasn’t a subduction zone event?

Plots showing probability distributions derived from measurements of 14C in long-chain fatty acids

Editors' Highlights

A 2700-year Record of Permafrost Thaw Sensitivity to Climate

by Susan Trumbore 5 May 20219 December 2021

Changes in the 14C ages of carbon and biomarkers deposited at the mouth of a river draining a permafrost watershed track responses of regional thaw depth to past warming and cooling.

Two models of the surface magnetic field of Saturn

Editors' Highlights

Saturn’s Dynamo Illuminates its Interior

by F. Nimmo 5 May 202115 March 2022

Saturn’s oddly symmetrical magnetic field can be explained by models in which the active dynamo region is overlain by a thick, stable layer cooled more strongly at the poles.