In demography and medical geography, epidemiological transition is a theory which "describes changing population patterns in terms of fertility, life expectancy, mortality, and leading causes of death
Leading causes of DALYs and percentage change between 1990 and 2013, Chile
Leading causes of DALYs and percentage change between 1990 and 2013, France
Leading causes of DALYs and percentage change between 1990 and 2013, Zimbabwe
A developing country is a country with a less-developed industrial base and a lower Human Development Index relative to developed countries. However, this definition is not universally agreed upon. Th
A formation of human chain at India Gate by the women from different walks of life at the launch of a National Campaign on prevention of violence against women, in New Delhi on 2 October 2009
Solar cookers use sunlight as energy source for outdoor cooking.
Factory in China at Yangtze River causing air pollution
Plastic pollution at a beach near Accra, Ghana