Population Reference Bureau

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2011 Human Development Report Links Environmental Degradation and Inequality

December 2011: Article The United Nations Development Programme's 2011 report examines the relationship between environmental degradation and inequality. Environmental challenges increase inequality, while inequalities in human development such as income, health, and education can further strain the environment.

Genetics Make Quitting Difficult for Some Smokers

December 2011: Article Today's smokers are more strongly influenced by genetic factors than in the past and that influence makes it more difficult for them to quit, according to a new study of twins published in the December issue of the journal Demography.

Kenya Population Data Sheet 2011

December 2011: Datasheet Kenya's population is growing rapidly and has more than tripled from 11 million people in 1969 to 39 million people in 2009. Even if the total fertility rate declines from an average of 4.6 children per woman in 2009 to 3.7 by 2030, the population will still grow to 66 million.

A Post-Recession Update on U.S. Social and Economic Trends (cont'd.)

November 2011: Report The U.S. Great Recession (2007 to 2009) resulted in a broad-based decline in America's economic well-being and security. This Population Bulletin Update provides new data and analysis on the ongoing impact of the recession in the United States.

16 Days of Activism Against Gender Violence

November 2011: Article The 16 Days of Activism Against Gender Violence is an international campaign to emphasize that such violence is a human rights violation.

U.S. Megalopolises 50 Years Later

November 2011: Article Exactly 50 years ago, geographer Jean Gottmann coined the term "megalopolis" to describe the sprawling regional mega-city taking shape between Boston and Washington, D.C. Today the three areas are only home to about one-third of all U.S. residents.

Media Coverage of 'World Population Reaches 7 Billion'

October 2011: Article Here are several articles and web resources about world population reaching 7 billion. The United Nations has designated Oct. 31, 2011, as the day that world population reached 7 billion.

In 2011, World Population Surpasses 7 Billion

October 2011: Article World population has surpassed 7 billion, and we are in the midst of history's most rapid population expansion. The sixth billion and the seventh billion were added in record time—only 12 years for each milestone.

In Rural Mali, Small Businesses Are Key to Women's Empowerment and Economic Development

October 2011: Article In early 2011, Pietronella van den Oever, PRB visiting scholar, visited the Malian staff and villagers she worked with as part of a UN Food and Agriculture Organization rural training project in the mid-1970s.

How Many People Have Ever Lived on Earth?

October 2011: Article Any estimate of the total number of people who have ever been born will depend on two factors: the length of time humans are thought to have been on Earth and the average size of the human population at different periods.

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