Mother Earth:
Nations' Green Energy Preference vs Some Other Metrics
Overview of Countries Green Energy Preference vs. Their Economic Performence
This is a plot of over 100 countries showing a general trend on green energy preference vs. GDP per capita. At first look, it is quite obvious that there seems to be a negative relationship, it even looks like an exponential decay. Looks like heavily industrialized rich countries mostly rely on fossil fuel for generating more wealth.