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Understanding and Using Population Projections

Government policymakers and planners around the world use population projections to gauge future demand for food, water, energy, and services, and to forecast future demographic characteristics.

View Details Array ( [ID] => 11721 [id] => 11721 [title] => Population-Projections_Eng [filename] => Population-Projections_Eng.pdf [filesize] => 296927 [url] => https://www.prb.org/wp-content/uploads/2001/12/Population-Projections_Eng.pdf [link] => https://www.prb.org/resources/understanding-and-using-population-projections/population-projections_eng-2/ [alt] => [author] => 15 [description] => Understanding and Using Population Projections [caption] => [name] => population-projections_eng-2 [status] => inherit [uploaded_to] => 9877 [date] => 2021-01-10 19:04:30 [modified] => 2021-01-10 19:04:36 [menu_order] => 0 [mime_type] => application/pdf [type] => application [subtype] => pdf [icon] => https://www.prb.org/wp-includes/images/media/document.png ) Download (0.3 MB)

Managing Migration: The Global Challenge

(March 2008) The number of international migrants is at an all-time high. There were 191 million migrants in 2005, which means that 3 percent of the world's people left their country of birth or citizenship for a year or more.

View Details Array ( [ID] => 14921 [id] => 14921 [title] => Population-Bulletin-2008-63.1migration [filename] => Population-Bulletin-2008-63.1migration.pdf [filesize] => 895837 [url] => https://www.prb.org/wp-content/uploads/2008/03/Population-Bulletin-2008-63.1migration.pdf [link] => https://www.prb.org/resources/managing-migration-the-global-challenge/population-bulletin-2008-63-1migration-2/ [alt] => [author] => 15 [description] => [caption] => [name] => population-bulletin-2008-63-1migration-2 [status] => inherit [uploaded_to] => 5588 [date] => 2021-01-30 19:40:02 [modified] => 2021-01-30 19:40:02 [menu_order] => 0 [mime_type] => application/pdf [type] => application [subtype] => pdf [icon] => https://www.prb.org/wp-includes/images/media/document.png ) Download (0.9 MB)

Policy Brief: Understanding and Using Population Projections

Government policymakers and planners around the world use population projections to gauge future demand for food, water, energy, and services, and to forecast future demographic characteristics.

View Details Array ( [ID] => 11721 [id] => 11721 [title] => Population-Projections_Eng [filename] => Population-Projections_Eng.pdf [filesize] => 296927 [url] => https://www.prb.org/wp-content/uploads/2001/12/Population-Projections_Eng.pdf [link] => https://www.prb.org/resources/understanding-and-using-population-projections/population-projections_eng-2/ [alt] => [author] => 15 [description] => Understanding and Using Population Projections [caption] => [name] => population-projections_eng-2 [status] => inherit [uploaded_to] => 9877 [date] => 2021-01-10 19:04:30 [modified] => 2021-01-10 19:04:36 [menu_order] => 0 [mime_type] => application/pdf [type] => application [subtype] => pdf [icon] => https://www.prb.org/wp-includes/images/media/document.png ) Download (0.3 MB)

Continuity and Change in the U.S. Decennial Census

The first nation in the world to take a regular population census, the United States has been counting its population every 10 years since 1790—as required by the U.S. Constitution (Article I, Section 2).

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Population Bulletin, vol. 63, no. 1: Managing Migration–The Global Challenge

(March 2008) The number of international migrants is at an all-time high. There were 191 million migrants in 2005, which means that 3 percent of the world's people left their country of birth or citizenship for a year or more.

View Details Array ( [ID] => 14921 [id] => 14921 [title] => Population-Bulletin-2008-63.1migration [filename] => Population-Bulletin-2008-63.1migration.pdf [filesize] => 895837 [url] => https://www.prb.org/wp-content/uploads/2008/03/Population-Bulletin-2008-63.1migration.pdf [link] => https://www.prb.org/resources/managing-migration-the-global-challenge/population-bulletin-2008-63-1migration-2/ [alt] => [author] => 15 [description] => [caption] => [name] => population-bulletin-2008-63-1migration-2 [status] => inherit [uploaded_to] => 5588 [date] => 2021-01-30 19:40:02 [modified] => 2021-01-30 19:40:02 [menu_order] => 0 [mime_type] => application/pdf [type] => application [subtype] => pdf [icon] => https://www.prb.org/wp-includes/images/media/document.png ) Download (0.9 MB)

U.S. Science and Engineering Labor Force Stalls, but Trends Vary Across States

(2012) Scientists and engineers make up only about 5 percent of the U.S. labor force, but are viewed as an important engine for higher earnings, innovation, and economic growth.

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The United States at 300 Million

HOW WE HAVE CHANGED SINCE THE UNITED STATES WAS A NATION OF 200 MILLION (September 2006) The United States is set to reach a milestone in October. It will become the third country—after China and India—to be home to at least 300 million people.

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