Citizen divers in Kiel, Germany, are making headlines for "underwater gardening," an effort to restore countless meadows under the Baltic Sea. The initiative comes after the decline in seagrasses—primary flora that makes underwater meadows—has reduced in size due to the declining quality of waters. To make matters worse, Europe lost one-third of its seagrass areas between the 1860s and 2016, speeding up global warming.
