Tiger sharks in the Bahamas have led scientists to one of the biggest seagrass habitats on Earth. But why is seagrass so important? Seagrass may look unassuming, but these underwater meadows play a powerful role in supporting marine life and tackling climate change. James Stewart investigates how, as these vital habitats disappear, scientists and communities are finding new ways to protect and restore them around the world. Fixing the Planet is a digital series, sponsored by Speed & Scale, that spotlights the everyday choices and cutting-edge innovations that can help us preserve our planet for generations to come. To find out more visit: https://bbcearth.com/fixing-the-planet Subscribe: http://bit.ly/BBCEarthSub Sign up to our newsletter for the latest news, updates and exclusives from BBC Earth https://www.bbcearth.com/newsletter Watch more: Best of BBC Earth 🌍 https://bit.ly/BestOfBBCEarth Best Animal Fights 🥊 https://bit.ly/BestAnimalFights Videos over 10 minutes ⏰ https://bit.ly/3SHJCEJ Planet Earth III 🌍 https://bit.ly/PlanetEarthIIIPlaylist Frozen Planet II ❄️ https:/bit.ly/FrozenPlanetIIPlaylist Blue Planet II in 4K 🌊 https://bit.ly/BluePlanetII4kPlaylist Welcome to BBC EARTH! The world is an amazing place full of stories, beauty and natural wonder. Here you'll find 50 years worth of entertaining and thought-provoking natural history content. Dramatic, rare, and exclusive, nature doesn't get more exciting than this. This is a commercial page from BBC Studios. Service information and feedback: http://bbcworldwide.com/vod-feedback--contact-details.aspx