This report discusses population trends abroad and their relation to immigration pressures and policies in the United States. The following sections are included: (1) "Two Major Waves of Immigration"; (2) "The U.S.--A Major Host Nation for Permanent Immigrants"; (3) "Changing Sources of Immigrants to the United States"; (4) "Current and Future Migrant Streams"; (5) "The Rise of Illegal Immigration to the United States"; (6) "Characteristics of the Top Immigrant Sending Countries"; (7) "The Pace of World Population Growth"; (8) "Age Structure's Influence on Migration"; (9) "World Labor Force Growth"; (10) "Labor Force Growth vs. Job Creation--a Case Study of Mexico; (11) "Rapid Urbanization--Further Spur to Immigration; (12) "New Immigrants to the U.S.--Where They Settle, How They Are Doing"; (13) "The Mismatch Between New U.S. Jobs and Immigrant Workers; (14) "Education and Immigration--The Case of California"; (15) "Immigration Policy and U.S. Population Size"; and (16) "U.S. Resources for Population Stabilization and Third World Development." Twenty-nine figures and two tables are included. (JS)