What strange forces saved one isolated section along the Upper Mississippi River from the repeated crushing and scouring effects of glaciers during the last two million years? And what pre-Ice Age throwbacks survived here in this unique geologic refuge that holds more Native American effigy mounds,...
Glaciers of the Winds is a one-hour documentary on the scientific exploration and retreat of the glaciers in the Wind River Mountains of Wyoming. WyomingPBS will look at the big picture of how receding alpine glaciers will affect the ecosystem, municipalities, farmers, and ranchers downstream.
Ice has always moved. When glaciation took hold some 34 million years ago, interconnected rivers of ice combined to produce the Earth's vast ice sheets. As temperatures slowly warmed glaciers developed a unique balancing act; advancing and retreating to calibrate their annual winter accumulation...
