Showing results for "Fire and Ice" in Biological Sciences

More than half a billion years ago, our world was completely covered by glaciers, a "Snowball Earth" that persisted for millions of years. Incredibly, this unimaginable cold led to the remarkable diversification of life on earth known as the Cambrian explosion. With a geologist's eye and a knack for storytelling, Graham Shields explores when and how such inhospitable conditions enabled animals to evolve, radiate, and diversify into our earliest ancestors.

Listen to climate change in Alaska through place-based narrative. Ice and Fire is a podcast that uses audio storytelling to share cryosphere change as the global climate warms. The cryosphere is all of Earth's frozen surface water including frozen freshwater lakes, glaciers, permafrost and sea ice -- frozen saltwater. It only takes a small temperature increase for water to melt or thaw from solid into liquid form, yet a cascade of impacts result when we lose ice to fastly flowing liquid.Season one emphasizes the significance of glacier melt, and connects listeners to distant glaciers rapidly...