Search for clues may explain collapse of ancient city in Mexico

Feben Ruscitti, a senior majoring in anthropology and classical studies, and Serena Webster, a graduate student in anthropology, sift through dirt to recover any missed artifacts from the excavation site in Mexico, July 2022. Credit: Andrew Somerville/Iowa State University Built more than a thousand years before the Aztec arrived in central Mexico, Teotihuacan was once … Read more

collapse of ancient Mayan capital linked to drought

Nature Communications (2022). DOI: 10.1038/s41467-022-31522-x” width=”800″ height=”530″/> Map of Mayapan. a, Layout of the city showing housing complexes, the defensive wall, formal gates, and the locations of skeletal samples (red dots). b, Gate and wall configurations adapted from prior research. c, Cross-section of the tiered double-wall construction surrounding Mayapan. MB, Mass Burial. Credit: Nature Communications … Read more

Natural systems in Australia are unraveling. If they collapse, human society could too

Credit: Shutterstock In the long-delayed State of the Environment report released this week, there is one terrifying sentence: “Environmental degradation is now considered a threat to humanity, which could bring about social collapses.” Hyperbole? Sadly not. Climate change has already warmed Australia 1.4℃ and changed rainfall in some regions. Natural ecosystems are already struggling from … Read more

Bridge collapse in Pakistan due to glacier lake outburst flood

Credit: Pamir Times on Twitter Extraordinary record-high temperatures in Pakistan triggered the collapse of the Hassanabad Bridge along the Karakoram Highway in the Hunza Valley. The ongoing heat wave melted ice on Glacier, creating a lake which flooded, wiping out the bridge and damaging nearby homes, buildings, and two power plants. This event is the … Read more