Lake Sediment Data Refutes Toba Eruption Extinction Theory for Early Humans

By Jacek Krywko · Ars Technica · 2026-08-09

Ars Technica reports that new geological analysis from Lake Chala suggests the massive Toba volcanic event 74,000 years ago had a significantly smaller climate impact than previously assumed. Researchers used high-resolution sediment layers to determine that global cooling likely

Ars Technica reports that new geological analysis from Lake Chala suggests the massive Toba volcanic event 74,000 years ago had a significantly smaller climate impact than previously assumed. Researchers used high-resolution sediment layers to determine that global cooling likely