鹽是珍貴的物資，對我們的生存至關重要。但這種「白色黃金」是否已構成對地球末來的威脅？ 世界各地的科學家對鹽化問題日益關注。這個現象對全球珍貴的淡水儲備有甚麼影響？ 鹽擁有非凡的潛力及多樣性，然而，隨著大海的鹹水不斷侵蝕沿岸土地，鹽掛上污染地下水和破壞農牧業的污名。大眾開始警覺鹽對他們的生活、生計，及文化都會大受威脅。 然而，近年有人研究利用鹽來儲電或用於建築用途。本集節目揭示鹽的力量密碼，細訴鹽如何改變綠色能源生產，開闢通往永續建築材料的道路。

Salt – precious and essential for survival. But has this white gold also become a threat to the future of our planet?
Scientists around the world are growing increasingly concerned about salinization. What does this mean for the world's precious freshwater reserves? With its incredible versatility and potential, however, salt also emerges as a promising protagonist of a greener tomorrow. Join us as we unlock the secrets of salt's power to revolutionize green energy production and forge a path towards sustainable building materials.