(2006) Still, at least one research and policy dimension remains little explored: The relationship between HIV/AIDS and the natural environment. HIV/AIDS is shaping society's impact on the natural environment in myriad ways and at many levels.
(2012) Almost two of every three people in sub-Saharan Africa live in a rural area, relying principally on small-scale agriculture for their livelihood. Improving agriculture on small farms is critical to reducing hunger.
(2007) For the first time, more than half the world's population will be living in cities and towns by next year, according to the State of World Population 2007 report from the United Nations.
HIV/AIDS emerged in the late 20th century. Believed to have originated in Africa, the disease has spread worldwide. Occurrence of HIV/AIDS and primary means of diffusion vary among regions. Because of the social and economic impacts of this disease, students should have a good understanding of the patterns and processes that define the spread of the disease.
(2008) Over the past 50 years, remarkable improvements in health care and higher incomes have benefited older Americans from all racial and ethnic groups. But significant gaps persist and have even widened among some groups.
(March 2009) When some people reach older ages, they begin to lose their ability to reason and to remember.
(2016) Every year, millions of girls in developing countries marry before their 18th birthday. In Egypt, it is one in six girls.