Clean air, low rates of illness and access to food help make
these the world’s 15 best places to live. Methodology: To
compile our list, we attempted to gather health and
environmental statistics for every nation. But due to incomplete
data, we only ranked 138 nations around the world. The
statistics we examined include estimated air pollution in world
cities, the percentage of a country’s population with access to
improved drinking water and sanitation, infant mortality rates,
the rate of prevalence of tuberculosis, the density of
physicians–generalist and specialists–per 1,000 people,
undernourishment rates, and healthy life expectancy for men at
birth. Sources: Ambient Particulate Matter Concentrations in
Residential and Pollution Hotspot Areas of World Cities: New
Estimates Based on the Global Model of Ambient Particulates
(GMAPS); The World Bank Development Economics Research Group and
the Environment Department Working Paper World Health Statistics
2007; World Health Organization Global Water Supply and