----- Original Message ----- From: "Michael Tobis" <[EMAIL PROTECTED]> Newsgroups: gmane.science.general.global-change To: <[email protected]> Sent: Tuesday, July 10, 2007 9:24 PM Subject: [Global Change: 1885] Re: breaking the population bomb taboo
Yes, demographers also study migration: at a fixed location over a fixed time period, population change = births - deaths + inmigration - outmigration. Globally, net migration is zero. "Demographer Dowell Myers's 2007 book, "Immigrants and Boomers: Forging a New Social Contract for the Future of America," argues that aging white US residents should increase investment in immigrant youth to raise their earnings and make tax funds available to pay for their own pensions and health care in retirement." (Source: "H-1B, Education, Trade" _Migration News_ Vol. 14 No. 2, April 2007. http://migration.ucdavis.edu/mn/index.php) Martin, Philip, Manolo Abella and Christiane Kuptsch. 2006. _Managing Labor Migration in the Twenty-First Century_. Yale University Press. http://yalepress.yale.edu/yupbooks/book.asp?isbn=0300109040 -dl --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups Global Change ("globalchange") newsgroup. Global Change is a public, moderated venue for discussion of science, technology, economics and policy dimensions of global environmental change. Posts will be admitted to the list if and only if any moderator finds the submission to be constructive and/or interesting, on topic, and not gratuitously rude. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/globalchange -~----------~----~----~----~------~----~------~--~---
