Tropical Fossils in Alaska | Geophysical Institute
2 days ago · Paleobotanist Jack A. Wolfe of the United States Geological Survey at Menlo Park, California, has found a number of tropical rain forest fossils along the eastern Gulf of Alaska. …
Northern Tree Habitats | Geophysical Institute
Jan 22, 2026 · Why take a chance with exotics, when native trees have proven their ability to survive? Several reasons prompt testing of foreign tree species. Human activities often create …
Cottonwood and Balsam Poplar | Geophysical Institute
Dec 18, 2025 · The Klukwan giant belies the belief that trees tend to get smaller the farther north one goes. Both balsam poplar and cottonwood have value for fuel wood, pulp and lumber.
Orange trees in the Alaska Range | Geophysical Institute
Sep 3, 2020 · While wandering middle Alaska this summer, I noticed orange spruce trees along the entire length of the Denali Highway, from Paxson to Cantwell.
Trees awaken from long winter's nap | Geophysical Institute
Mar 27, 2014 · Along with the water, the trees are moving carbon to help build their solar panels. In her quiet grove of trees in this narrow valley, Young is listening to what boreal forest trees …
More on Why Tree Trunks Spiral | Geophysical Institute
Jan 22, 2026 · Granted, not all trees exhibit the same twist, but the majority of them do. The phenomenon can be likened to the claim that water will always spiral out of a drain in a …
Memories of souls in a winter birch forest | Geophysical Institute
Dec 7, 2023 · Three birch trees stand in a field at the University of Alaska Fairbanks during a recent celebration for three scientists killed in a helicopter crash in July 2023. Photo by Alyssa …
The varying colors of fall equinox | Geophysical Institute
Sep 21, 2023 · These trees are now responding to fewer hours of sunlight by ceasing to flood their leaves with chlorophyll. The sudden lack of that green, energy-converting chemical allows …
Bark beetles take Connecticut-size bite out of Alaska
Feb 26, 2004 · The result was an area the size of Connecticut in which spruce trees died en masse, giving the forest ecosystem a makeover from which it won’t soon recover. Now, most …
Trees as Earthquake Fault Indicators | Geophysical Institute
Dec 18, 2025 · A swath of dead, tilted and broken trees now makes obvious the trace of the Fairweather fault that broke in July 1958 to devastate Lituya Bay and nearby parts of …