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South America

A series of petroglyphs of animal, human, and plant images on a cliff wall
Posted inNews

European Contact with the Americas May Have Triggered Global Cooling

Mary Caperton Morton, Science Writer by Mary Caperton Morton 8 April 20199 September 2024

The loss of precontact agricultural communities to genocide and disease may have led to massive reforestation, a dip in carbon dioxide, and one of the coldest snaps of the Little Ice Age.

Researchers examine how the rapid spread of invasive freshwater mussels affects estuary sediments
Posted inResearch Spotlights

Invasive Freshwater Mussels Drive Changes in Estuary Sediments

Aaron Sidder, freelance science writer by Aaron Sidder 24 July 20182 March 2023

The golden mussel has spread quickly in the 30 years since its arrival in South America and is transforming aquatic ecosystems in waterways across the continent.

Researchers unravel the mystery of an anomaly in Earth’s ionosphere
Posted inResearch Spotlights

Auroras May Explain an Anomaly in Earth’s Ionosphere

by E. Underwood 7 August 201723 January 2023

A new study finds that the ionospheric anomaly over the Weddell Sea is likely influenced by proximity to auroral energy input, rather than by tilting magnetic fields.

Researchers conduct a lake survey in front of Glaciar Perito Moreno.
Posted inResearch Spotlights

In Patagonian Lakes, Glacial Meltwater Lies Low

Sarah Stanley, Science Writer by Sarah Stanley 12 May 20173 March 2023

A new study reveals key differences in ice-water interactions between glaciers that flow into lakes and glaciers that end in the sea.

Researchers analyze recent earthquakes in Chile to better understand how major earthquakes cluster
Posted inResearch Spotlights

Why Do Great Earthquakes Follow Each Other at Subduction Zones?

by Terri Cook 31 March 201716 March 2022

A decade of continuous GPS measurements in South America indicates that enhanced strain accumulation following a great earthquake can initiate failure along adjacent fault segments.

colombia-tropical-dry-forest-fire
Posted inScience Updates

Identifying a Fire Ecology Research Agenda for Colombia

by S. Rodríguez-Buriticá, M. Aguilar-Garavito and N. Norden 10 January 201710 February 2017

Fire Ecology Colloquium; Bogotá, Colombia, 23–24 June 2016

Posted inScience Updates

Extending Recent Seismic Imaging Successes to South America

by K. M. Ward, J. R. Delph and S. L. Beck 28 April 201627 January 2023

Ambient Noise Tomography Workshop (MIMOSA); Tucson, Arizona, 17–23 January 2016

Posted inResearch Spotlights

What Causes Extreme Hail, Tornadoes, and Floods in South America?

by S. Palus 11 May 20152 August 2022

A study of extreme weather in South America shows seasonal and spatial patterns, which, if better understood, could help save lives and minimize damage to property.

Posted inResearch Spotlights

Could Amazonian Deforestation Increase Cloudiness and Rain?

by S. Palus 4 May 201529 April 2022

In trading trees for pastures, patchwork differences in vegetation heights increase cloudiness in downwind regions.

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Features from AGU Publications

Research Spotlights

How Greenland’s Glacial Troughs Influence Ocean Circulation

29 May 202529 May 2025
Editors' Highlights

Seasonal Iron Cycle and Production in the Subantarctic Southern Ocean

29 May 202529 May 2025
Editors' Vox

Keeping Soil Healthy: Why It Matters and How Science Can Help

29 May 202529 May 2025
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