The effects of the rapidly expanding human population on the environment and the planet's future is a matter of increasing concern and lively debate. This timely collection of essays discusses some of the most important aspects of the population growth phenomenon and offers potential solutions. Chapters analyse population dynamics, carrying capacity of the environment, water and food supply, effects on tribal societies, and the AIDS pandemic.

The United Nations population estimates and projections form a comprehensive set of demographic data to assess population trends at the global, regional and national levels. They are used in the calculation of many of the key development indicators commonly used by the United Nations system, including for more than one third of the indicators used to monitor progress towards the achievement of the Sustainable Development Goals. The 2019 revision of the World Population Prospects is the twenty-sixth edition of the official United Nations population estimates and projections, which have been prepared since 1951 by the Population Division of the Department of Economic and Social Affairs. The 2019 revision presents population estimates from 1950 until the present for 235 countries or areas, which have been developed through country-specific analyses of historical demographic trends. It builds on previous revisions by incorporating additional results from the 2010 and 2020 rounds of national population censuses as well as information from vital registration and recent nationally representative household sample surveys. The 2019 revision also presents population projections to the year 2100 that reflect a range of plausible outcomes at the global, regional and country levels. These Highlights summarise key population trends described by the estimates and projections presented in World Population Prospects 2019.

October 31, 2011, marked an uneasy milestone for Planet Earth. On this day, the global population surpassed seven billion. What does that mean for a world that, until the nineteenth century, was home to less than one billion people? Experts say it means the planet is in trouble. Some wonder if Earth will even be able to sustain human life at its current rate of growth. Will there be enough food for everyone? Will conflicts over land increase? How will the environment be affected? Can humanity survive the predicted disasters? More than a simple case of running out of space, the population crisis is interwoven with a host of other issues?from climate change and resource management to war, disease, and poverty. Discover how all these factors converge to place an entire planet in crisis mode?and explore what sort of responses that crisis may require.

The anthrax incidents following the 9/11 terrorist attacks put the spotlight on the nation's public health agencies, placing it under an unprecedented scrutiny that added new dimensions to the complex issues considered in this report. The Future of the Public's Health in the 21st Century reaffirms the vision of Healthy People 2010, and outlines a systems approach to assuring the nation's health in practice, research, and policy. This approach focuses on joining the unique resources and perspectives of diverse sectors and entities and challenges these groups to work in a concerted, strategic way to promote and protect the public's health. Focusing on diverse partnerships as the framework for public health, the book discusses: The need for a shift from an individual to a population-based approach in practice, research, policy, and community engagement. The status of the governmental public health infrastructure and what needs to be improved, including its interface with the health care delivery system. The roles nongovernment actors, such as academia, business, local communities and the media can play in creating a healthy nation. Providing an accessible analysis, this book will be important to public health policy-makers and practitioners, business and community leaders, health advocates, educators and journalists.

Includes bibliograpical references and index.

Hospitals and nursing homes are responding to changes in the health care system by modifying staffing levels and the mix of nursing personnel. But do these changes endanger the quality of patient care? Do nursing staff suffer increased rates of injury, illness, or stress because of changing workplace demands? These questions are addressed in Nursing Staff in Hospitals and Nursing Homes, a thorough and authoritative look at today's health care system that also takes a long-term view of staffing needs for nursing as the nation moves into the next century. The committee draws fundamental conclusions about the evolving role of nurses in hospitals and nursing homes and presents recommendations about staffing decisions, nursing training, measurement of quality, reimbursement, and other areas. The volume also discusses work-related injuries, violence toward and abuse of nursing staffs, and stress among nursing personnelâ€"and examines whether these problems are related to staffing levels. Included is a readable overview of the underlying trends in health care that have given rise to urgent questions about nurse staffing: population changes, budget pressures, and the introduction of new technologies. Nursing Staff in Hospitals and Nursing Homes provides a straightforward examination of complex and sensitive issues surround the role and value of nursing on our health care system.