Kelp forests are one of the most vital ecosystems in the world, sequestering more carbon than equivalent areas on land. In Northern California, more than 97% of kelp has been lost due to climate change. In fact, seaweed and kelp forests around the globe are being threatened by human activity and the global race is on to protect them. Learning from scientists from around the world will help reverse this devastating trend. —AB

Farming under the sea? Meet Bren Smith, the ocean farming pioneer whose vertical kelp and shellfish farms are transforming the way food is produced. He discovered a new method of restorative ocean farming, producing large quantities of nutritious food while fighting the climate crisis, cleaning the ocean, creating aquatic habitat, and sustaining his organic sea-fairing way of life. —GC

Hidden Treasure of the Salish Sea, Liz Smith, USA (26 mins) The kelp forests of the Puget Sound have long played an essential role in the local ecosystem as a habitat and food source. Today, this foundational species is in decline, but resource managers, scientists, tribal citizens, and advocates are working together to solve the mysteries of conserving and restoring kelp forests.