In Peter Singer’s book, How Are We To Live, two interesting points are made:

1. In order for the world we live in to sustain billions of us, we need to move on from consumption being the main source of fulfillment. I would annotate this with - move on from unsustainable consumption.

2. Linked to the above, once we have our basic needs met, it appears that no further level of attainment provides lasting fulfilment…in other words we adapt to the stuff we have and do not become happier the more we accumulate.