A review is presented of halophyte potential when grown in saline lands or irrigated with saline waters for the production of forages and other beneficial uses in the various conditions under which salinity may occur. Halophyte use in bioremediation to improve chemical and physical properties of saline-sodic and sodic soils is also illustrated. Conditions for sustainably growing halophytes and salt-tolerant glycophytes as well as for protecting lands endangered by secondary salinization are examined. Halophyte potential in capturing and long-term sequestering atmospheric carbon dioxide is evaluated. Economic and social implications are briefly illustrated.