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EPJ Data Science
Figure 1 | EPJ Data Science

Figure 1

From: Urban green space and happiness in developed countries

Figure 1

The distributions of urban green space and happiness over the world. (a) The map of urban green space and happiness in 60 developed countries. The size and color of circles represent the level of happiness and urban green space in a country, respectively. The markers are placed on the most populated cities of each country. (b)–(d) The histograms of (b) happiness, (c) urban green space (UGS) and (d) logarithmic GDP per capita (log-GDP). We use the logarithm of the total NDVI per capita as an indicator of urban green space, and the logarithm of GDP per capita as a measure of wealth

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