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South America

Several long tubes of ice in transparent plastic rest in a freezer. A pair of hands clad in blue gloves with black cuffs reaches down into the freezer. On the wrapper of each tube of ice is a label handwritten in blue—FL_104, FL_105, and so forth—as well as arrows pointing to one end of the ice.
Posted inNews

Antarctic Ice Cores Capture Heavy Metal Pollution—And History

Katherine Kornei, Science Writer by Katherine Kornei 26 February 202423 April 2024

An ice core record stretching back more than 2 millennia hints at the mining and metallurgy that waxed and waned with events such as wars and epidemics.

Llamas walking along a rocky landscape in front of a retreating glacier in Cordillera Blanca, northern Peru.
Posted inNews

How Llama Poop Is Helping an Andean Community Adapt to Melting Glaciers

by Sofia Moutinho 9 November 202317 November 2023

Reintroducing these animals can enrich barren soils and potentially reduce water contamination, a study shows.

Posted inThe Landslide Blog

El Peñón de Guatapé: a dangerous collapse at a tourist site in Colombia

by Dave Petley 6 November 20236 November 2023

On 2 November 2023 a dramatic fall of soil and organic debris injured 17 people.

A dry tree stands out amid green trees in an Amazon forest.
Posted inNews

South American Rainforests Are on the Brink of Becoming Carbon Sources

by Sofia Moutinho 17 October 202317 October 2023

Plants’ ability to stock carbon ceased during the 2015–2016 El Niño, as temperatures skyrocketed and trees died.

Posted inThe Landslide Blog

An interesting erosive event in the Socavón Cochoa area of Viña del Mar, Chile

by Dave Petley 24 August 202324 August 2023

Dramatic erosion of a sand dune in Viña del Mar, Chile appears to be related to maintenance of a drainage pipe.

The setting Sun sits just above the horizon and under a partly cloudy sky, with a body of water in the foreground.
Posted inResearch Spotlights

Biogeochemical Insights from a Major Amazonian River

Aaron Sidder, freelance science writer by Aaron Sidder 15 August 202322 October 2024

Underrepresented in global carbon budgets, tropical rivers like Brazil’s Tocantins are in need of study to establish their baseline characteristics in the face of increasing global change.

A rural road in Bandera, Santiago del Estero, Argentina, is flooded.
Posted inNews

Farming Is Intensifying Floods in the South American Plains

by Sofia Moutinho 10 August 202310 August 2023

The replacement of native vegetation by crops has raised groundwater levels in the Pampas, a new study suggests.

Photo of dust blowing on an Arizona hillside.
Posted inEditors' Vox

Danger in the Dust! The Hazards of Windblown Dust

by Thomas E. Gill, Daniel Tong, William Sprigg and R. Scott Van Pelt 1 June 202314 July 2023

Airborne dust not only causes disease, it also menaces transportation on land, sea, and air; disrupts renewable energy systems; transports pathogens and toxic substances; and poses many other hazards.

A forest of green trees in the foreground with low clouds and mountain peaks behind
Posted inResearch Spotlights

Short-Lived Solutions for Tall Trees in Chile’s Megadrought

by Rebecca Dzombak 31 May 202331 May 2023

Some southern beeches in the Andes have plumbed deeper for moisture as the surface has dried up. But doing so may deplete resources and undermine the trees’ future health.

A photo angled from above of a small white bird and a white egg in a nest of twigs.
Posted inNews

Harpy Eagles Concentrate Precious Nutrients in the Amazon

Adityarup Chakravorty, freelance science writer by Adityarup Chakravorty 10 May 202325 May 2023

Amazon soils are usually low in the nutrients that plants covet, but harpy eagles can create local hot spots with their poop and prey.

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