Rainforest Indians of Ecuador and Peru have lost an appeal aimed at reinstating nine-year-old litigation against Texaco, alleging that toxic dumping devastated their environment and exposed residents to cancer-causing pollutants. The U.S. Second Circuit Court of Appeals on Friday affirmed a trial court's ruling dismissing two class-action lawsuits on grounds that the United States was not the proper place for the litigation, and that Ecuador would be a more convenient location.