Airborne campaign analyzing climate change in the Arctic
Business Announcement
Updates every hour. Last Updated: 10-Sep-2025 14:11 ET (10-Sep-2025 18:11 GMT/UTC)
The Arctic is one of the regions most strongly affected by climate change. In recent decades, the temperature there has risen four times as fast as the global average. The ASCCI measurement campaign coordinated by the Karlsruhe Institute of Technology (KIT) and Goethe University Frankfurt is investigating why the Arctic is warming so much faster than the rest of Earth’s surface and what effects that will have. With measurement flights taking place in the region through early April, the researchers are working to gain a better understanding of the causes and effects of Arctic climate change.
Sharp stone technology chipped over three million years allowed early humans to exploit animal and plant food resources, which in turn played a large role in increasing human brain size and kick-starting a technological trajectory that continues to this day. But how did the production of stone tools – called ‘knapping’ – start? Three Cleveland Museum of Natural History researchers have proposed a new hypothesis for the origin of stone technology in human evolution. Associate Curator and the Robert J. and Linnet E. Fritz Endowed Chair of Human Origins Dr. Emma Finestone and Museum research associates Drs. Michelle R. Bebber and Metin I. Eren (both also professors at Kent State University) led a team of 24 scientists to publish the new hypothesis in the journal Archaeometry.
A recent review in Engineering presents new methods for enhancing chiral optical signals. Chirality is important in many fields, but its optical signals are weak and hard to measure. The research covers strategies like tailoring optical fields, using photonic resonance, orbital angular momentum (OAM) beams, metasurfaces with bound states in the continuum (BICs), and nonlinear optics. These methods offer new ways to study chiral optics, though challenges remain.