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J. Besl

A shallow, narrow creek cuts through the backyard of a home.
Posted inNews

Hypoxia Affects One in Eight Rivers Worldwide

by J. Besl 19 April 202319 April 2023

A global study found dangerously low levels of dissolved oxygen in rivers around the world. The true prevalence of hypoxia is probably even higher.

A large gray ash cloud covers the majority of visible Earth in a photo taken from the International Space Station.
Posted inNews

Tonga Eruption May Temporarily Push Earth Closer to 1.5°C of Warming

by J. Besl 16 March 202316 March 2023

The underwater eruption of Hunga Tonga–Hunga Ha‘apai sent megatons of water vapor into the stratosphere, contributing to an increase in global warming over the next 5 years.

Two small tree swallows peek out of a nest box hanging in a tree.
Posted inNews

Climate Extremes Threaten California’s Central Valley Songbirds

by J. Besl 16 February 202316 February 2023

A “nestbox highway” in California’s Central Valley is guiding songbirds to safe nesting sites and giving scientists a peek at fledgling success in a changing climate.

A 2017 landslide in Freetown, Sierra Leone, killed an estimated 1,100 residents, largely in informal settlements.
Posted inNews

Protecting Poor Neighborhoods from Landslide Risk

by J. Besl 8 December 20221 June 2023

As low-income, informal settlements bloom in the tropics, their risk of landslides increases. A new modeling tool incorporates urbanization factors to protect the region’s poorest neighborhoods.

Mangrove forest
Posted inNews

After a Hurricane, Coastal Systems Draw a Line in the Sand

by J. Besl 13 April 202213 April 2022

A new study finds nature can’t have it both ways: On the basis of thousands of case studies from dozens of hurricanes, there’s always a trade-off between resistance and resilience.

Imagen aérea de un vecindario en Texas inundado. Se observan sólo los techos de las casas y las copas de los árboles.
Posted inNews

Cuando los ríos están contaminados, las inundaciones son solamente el primer problema

by J. Besl 24 March 202227 March 2023

A medida que las inundaciones aumentan en frecuencia e intensidad, los productos químicos enterrados en los sedimentos de los ríos se convierten en “bombas de tiempo” que esperan activarse.

The Amazon Tall Tower Observatory is a joint Brazilian-German research station with a 325-meter tower making environmental observations in the Amazon.
Posted inFeatures

Africa’s Earth, Wind, and Fire Keep the Amazon Green

by J. Besl 23 March 202225 March 2022

Jet streams sprinkle North African dust over the Amazon, providing the rain forest with much needed nutrients. Changing wind patterns and increasing smoke may shift the system.

An artist’s rendering of TOI-2180 b
Posted inNews

At-Home Astronomers Help Discover a New, Unique Exoplanet

by J. Besl 2 March 20222 March 2022

Amateur astronomers sifting through NASA’s public data uncovered a long-orbit gas giant that could help scientists understand how these planets form.

Posted inNews

Una nueva herramienta crea rápida y gratuitamente mapas de inundaciones para el sur global

by J. Besl 8 December 202131 March 2022

Un nuevo programa en línea puede trazar rápidamente los contornos de inundaciones pasadas, permitiendo que los países con escasez de datos se preparen para futuros desastres.

Trees with a view of Italy’s Mount Etna behind.
Posted inNews

Supergreen Trees Can Signal Sites of Eruptions

by J. Besl 8 November 202126 April 2022

Tree core chemistry can explain what happened before Mount Etna’s 2002 eruption and suggests that trees could play a role in rebuilding past eruptions.

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Features from AGU Journals

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“Neural Networks Map the Ebb and Flow of Tiny Ponds”
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EDITORS' HIGHLIGHTS
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By Muki Haklay

EDITORS' VOX
Reviews of Geophysics
“What We Know and Don’t Know About Climate Tipping Elements”
By Seaver Wang

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