You might like Hal Clement's work, especially "Mission of Gravity", "Close to Critical", and "Cycle of Fire". "Iceworld" and his next to last "Half Life" are interesting but not as well written as some of his others. "The Nitrogen Fix" isn't paritcularly well written either, but is an interesting near future, post-unexpected-apocalypse novel. Note Clement was a high school science teacher, and tried to make all his science at least plausible though sometimes he goofed, like the shape of Mesklin.