Second, in an ecologic analysis, one cannot control for confounding factors as one can in an analytic epidemiologic study.

FORBES: Will Removing Menthol From Cigarettes Improve Health?

Already, the boundaries of 3D technology are widening substantially with the 3D printed car, the two-seat Urbee created by KOR EcoLogic of Canada.

FORBES: Written by Robert ��Buzz�� Kross

Ecologic studies of this sort have well-known limitations: above all, they make use of aggregate information on the exposure groups and rates of disease rather than information on individuals.

FORBES: Will Removing Menthol From Cigarettes Improve Health?

For De Schutter, the fact that food is often produced thousands of miles away from where most people live represents an irrational system, both from an ecologic and economic perspective.

CNN: Futuristic farm shop grows food in synthetic veg patch

Stratasys is even trying to print a car, or at least the body of one, for Kor Ecologic, a company in Winnipeg, whose boss, Jim Kor, is developing an electric-hybrid vehicle called Urbee.

ECONOMIST: 3D printing

Summarizing those criteria, the policy to be applied required a comprehensive, integrated approach, where broad participation in the project starting right from the planning stage and decentralized strategies along with ecologic and economic feasibility have been the main guidelines.

UNESCO: Background

Because our ecologic observation from 24 years ago initially drew attention to menthol, we decided to examine ecologically the changes in the rates of four smoking-related cancers by race and sex from 1973 to 2007 in relation to the prevalence of smoking of mentholated cigarettes.

FORBES: Will Removing Menthol From Cigarettes Improve Health?

However, because there is such a strong contrast in the preference for menthol by race and sex and because there are large differences in the rates of these cancers also by race and sex, we felt that this was a case in which an ecologic approach could be informative.

FORBES: Will Removing Menthol From Cigarettes Improve Health?