Numbers, Facts and Trends Shaping Your World

Search results for: “future”


  • report

    Number of Muslims Worldwide Expected to Nearly Equal Number of Christians by 2050; Religiously Unaffiliated Will Make Up Declining Share of World’s Population

    Media Contact: Katherine Ritchey, Communications Manager 202-419-4372, kritchey@pewresearch.org Washington, April 2, 2015 — The religious profile of the world is rapidly changing, driven primarily by differences in fertility rates and the size of youth populations among the world’s major religions, as well as by people switching faiths. Over the next four decades, Christians will continue to […]

  • feature

    Family Support in Graying Societies

    America is turning gray, with the share of people ages 65 and older expected to rise more than 50% by 2050 – a trend that may burden more families. But Germany and Italy are already there, with a fifth of their population in that age range.

  • report

    Ukraine 2015: How We Approached Our Sample Design in Light of Insecurity in Eastern Ukraine

    The uneasy ceasefire in eastern Ukraine, punctuated by almost daily fighting between separatists and government forces, posed a major challenge to the Pew Research Center as we set about conducting a new public opinion survey in that country this past spring. As always, our first priority was the safety of interviewers and respondents, who can both be at risk when it comes to face-to-face surveys in a conflict zone.

  • report

    Methodology

    This report is part of a series by the Pew Research Center aimed at understanding of political news and information habits in the American public. An initial report on these data explored these habits across the ideological spectrum. Data in this report are drawn from the first wave of the Pew Research Center’s American Trends […]

  • report

    Chapter 1: Main Factors Driving Population Growth

    When demographers attempt to forecast changes in the size of a population, they typically focus on four main factors: fertility rates, mortality rates (life expectancy), the initial age profile of the population (whether it is relatively old or relatively young to begin with) and migration. In the case of religious groups, a fifth factor is […]

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