This Week In Wellness a study published in Environmental Science and Policy has shown that environmentally friendly actions leads to greater ‘subjective well being’ (or happiness) regardless of their income, or values and motivations.

https://www.sciencedirect.com/science/article/abs/pii/S1462901122000776

https://theconversation.com/climate-change-greener-lifestyles-linked-to-greater-happiness-in-both-rich-and-poor-countries-180182