by Phoebe Adams
by Michael Heim. Knopf, $6.95. In deliberately flat, commonplace prose, Mr. Heim tells a wild tale of ecological folly and international bungling. The novel is part political satire, part science fiction, part save-the-environment tract. It works effectively on all three levels, and one would be enough to scare the reader Nile green. Translated by J. Maxwell Brownjohn.