RT Book, Section A1 Last, John M. A1 Soskolne, Colin L. A2 Wallace, Robert B. SR Print(0) ID 1145319703 T1 Human Health in a Changing World T2 Maxcy-Rosenau-Last Public Health and Preventive Medicine, 15e YR 2017 FD 2017 PB McGraw-Hill Medical PP New York, NY SN 9780071441988 LK accessbiomedicalscience.mhmedical.com/content.aspx?aid=1145319703 RD 2024/04/24 AB Throughout its 4-billion-year life, Earth has undergone many changes in the distribution and abundance of life forms, including human inhabitants, and in the living and nonliving features of the ecosystems with which humans interact. Early in the twenty-first century, the United Nations Millennium Assessment Report, the collective work of over 1300 scientists worldwide, painted a disturbing picture of life-supporting ecosystems that are gravely stressed by human activities to an extent that is unsustainable even in the medium-term. This conclusion has been reinforced by recent publications of the Intergovernmental Panel on Climate Change,1 and the Millennium Ecosystem Assessment.2