Diamonds reveal hidden chemistry deep inside Earth South African diamonds have revealed nickel-rich metallic inclusions, offering the first direct evidence of reactions predicted to occur deep in Earth’s mantle. The study shows how oxidized melts infiltrated reduced rocks, trapping both the cause and effect of diamond formation. These reactions help explain volatile-rich magmas like kimberlites, linking mantle chemistry to volcanic processes. Diamonds emerge as tiny record-keepers of Earth’s deep, dynamic engine.
https://www.sciencedaily.com/r....eleases/2025/09/2509

This surprising building material is strong, cheap, and sustainable A team at RMIT University has created a cement-free construction material using only cardboard, soil, and water. Strong enough for low-rise buildings, it reduces emissions, costs, and waste compared to concrete. The lightweight, on-site process makes it ideal for remote areas, while its thermal properties naturally cool buildings. Researchers see it as a key step toward greener, more resilient architecture.
https://www.sciencedaily.com/r....eleases/2025/09/2509

Insects are disappearing from the last places we thought were safe A long-term study in Colorado reveals that insect populations are plummeting even in remote, undisturbed areas. Over two decades, flying insect abundance dropped by more than 70%, closely linked to rising summer temperatures. The results suggest that climate change, not just human land use, is driving massive losses. Scientists warn that biodiversity hotspots, especially mountain ecosystems, are now at serious risk.
https://www.sciencedaily.com/r....eleases/2025/09/2509

Earthquakes release blistering heat that can melt rock in an instant MIT scientists have unraveled the hidden energy balance of earthquakes by recreating them in the lab. Their findings show that while only a sliver of energy goes into the shaking we feel on the surface, the overwhelming majority is released as heat—sometimes hot enough to melt surrounding rock in an instant.
https://www.sciencedaily.com/r....eleases/2025/09/2509

Why Alaska’s salmon streams are suddenly bleeding orange Warming Arctic permafrost is unlocking toxic metals, turning Alaska’s once-clear rivers into orange, acid-laced streams. The shift, eerily similar to mine pollution but entirely natural, threatens fish, ecosystems, and communities that depend on them—with no way to stop the process once it starts.
https://www.sciencedaily.com/r....eleases/2025/09/2509