Plants in Peril Go Cold

Thousands of plants around the world are endangered or have gone extinct, victims of climate change, logging and habitat loss. At the Huntington Botanical Garden in San Marino, botanists are trying to save them through the science of “cryopreservation” or freezing. But succulents have a high water content that turns to destructive ice when frozen. Reporter Cara Santa Maria talks to cryopreservationist, Raquel Folgado, to see how she is working to overcome the icy challenge and if plants can be brought back to life after a deep freeze.