The Keweenaw Peninsula shoreline tells a billion-year-old story forged in fire, sculpted by ice. Geoheritage tours teach visitors and residents how to read the variegated cliffs, long-tailed tombolos and shifting sands. To see where volcanoes, glaciers and humans irrevocably altered topography. Bill Rose, a Michigan Tech professor emeritus of geology who developed and leads the tours, calls it “geopoetry.” View full story here.
Carbon dioxide measured by a NASA satellite pinpoints sources of the gas from human and volcanic activities, which may help monitor greenhouse gases responsible for climate change. View full story here.