With an all star team of scientists and advocates, I witness firsthand a few of the more than 500 rock glaciers in the Sierra Nevada mountains. To be honest, I had never heard of rock glaciers -  it turns they are well kept secret. Led by Daniel Taillant, Dr. Connie Millar, Dr. David Herbst, Sara Aminzadeh and Adam Riffle, we discover that rock glaciers may help many streams keep flowing cold even during the worst climate change has to offer. As a bonus you’ll learn how to make a rock glacier in your home freezer!