Nature and EnvironmentIndiaCoastal sand erosion in India06:45This browser does not support the video element.Nature and EnvironmentIndiaMohit Rao06/14/2023June 14, 2023Coasts worldwide are threatened by the sea. Seawalls, groins or reefs often aren't a solution because they only create new problems elsewhere. Scientists are instead considering green walls constructed from trees or creepers.Copy linkAdvertisement