盐是珍贵的物资，对我们的生存至关重要。但这种「白色黄金」是否已构成对地球末来的威胁？ 世界各地的科学家对盐化问题日益关注。这个现象对全球珍贵的淡水储备有什么影响？ 盐拥有非凡的潜力及多样性，然而，随着大海的咸水不断侵蚀沿岸土地，盐挂上污染地下水和破坏农牧业的污名。大众开始警觉盐对他们的生活、生计，及文化都会大受威胁。 然而，近年有人研究利用盐来储电或用于建筑用途。本集节目揭示盐的力量密码，细诉盐如何改变绿色能源生产，开辟通往永续建筑材料的道路。

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.