Genetically alter trees to make more hygroscopic terpenes

[Swayseeker]

Scientists are genetically modifying trees to produce more terpenes. Could one genetically alter trees to produce more hygroscopic terpenes. I note that cellulose is hygroscopic and so is glycerin. Could one get a tree to produce volatile hygroscopic terpenes or other substances? These trees could help create rain in drought areas, for instance. I explain more use for hygroscopic terpenes in my Air Pollution page on facebook