Misteriosos picos de contaminación—10 veces más altos que los niveles normales—ocurren en Santiago durante los partidos de fútbol televisados y son causados por decenas de miles de parrilladas, revelan nuevos resultados.
South America
The Other, Deeper, South American Flat Slab
Tomographers trace the slab subducting beneath South America into the lower mantle, providing the most complete picture of structure beneath the continent to date.
Catching Elves in Argentina
The world’s largest cosmic ray detector accidentally spotted elves, an unusual lightning phenomenon high in the atmosphere. Now it’s intentionally looking for more.
Pollution Spikes in Chile Tied to Soccer Fans’ Barbecuing
In Santiago, mysterious pollution spikes—tenfold above normal levels—occur during televised soccer matches and are caused by tens of thousands of barbecues, new results reveal.
Tropical Forests Are Losing Their Ability to Soak Up Carbon
The forests could switch from a carbon sink to a carbon source by the mid-2030s.
Brazil’s Oil Spill Is a Mystery, so Scientists Try Oil Forensics
Thousands of barrels of oil have been tarring Brazil’s beaches since September, and no one knows why. An oil spill scientist is running oil forensics to find out.
Ousted Head of Science Agency Criticizes Brazil’s Denial of Deforestation Data
Ricardo Galvão was fired from the institute that monitors deforestation in the Amazon. Now he and other scientists are speaking out against attacks on science.
Recycled Glasses Connect Eclipse Watchers Across the Equator
Instead of throwing them in the trash, millions donated their slightly used eclipse glasses so that others around the world could share the experience.
European Contact with the Americas May Have Triggered Global Cooling
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.
Invasive Freshwater Mussels Drive Changes in Estuary Sediments
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.
