Findings on Happiness and subject: Nature in region)

Correlate as named by investigatorPeople investigated
FindingForests and nature16+ aged, general public, The Netherlands, 2004
FindingWater %18+ aged, general public, United Kingdom, followed 18 years 1991 - 2008
FindingPerceived impact of noise pollutionAdults, general public, West-Germany, 1994-2004
FindingPerceived impact of air pollutionAdults, general public, West-Germany, 1994-2004