What does PI stand for?

Outlined in the article Cities of the Future is a statement by Werner Fornos, president of the Washington-based Population Institute saying that "by 2050, an estimated two-thirds of the world''s population will live in urban areas, imposing even more pressure on the space infrastructure and resources of cities leading to social disintegration and horrific urban poverty".

RICHARD GROSSMAN is an obstetrician-gynecologist, a columnist in the Durango (Colorado) Herald (where versions of this piece first appeared) and a 2007 recipient of a Global Media Award from the Population Institute.

Sociologist Steffen Kroehnert, who did the report on the female exodus for the Berlin population institute, suggests that female-headed households and lack of male role models in education may play a role.

based Population Institute, the awards were presented December 5, 2002 in Havana, Cuba.

To combat this so-called "baby bust," the Labor Party and business coalitions such as the Australian Population Institute are calling for maternity leave, tax breaks and, most of all, increased immigration to shore up their nation's numbers.

The Young Adult Fertility and Sexuality Survey (YAFS II) conducted by the University of the Philippines Population Institute (UPPI) in 1994 reported that among pregnant teenagers in the country, 16% had induced abortions, greater than the number of delivery cases.

Unsurprisingly, that determination was challenged in a federal lawsuit by the Population Institute, a U.

Statistics indicate one third of China's population will be over 60 by 2050, said Du Peng, a researcher at the population institute of the People's University, the newspaper reported.