It is tough to convince people to pay up even for items such as provident funds. So how can we convince them to pay more for environmental improvement? If you ask anyone whether more needs to be paid for the environment, most would agree. However, ask them to voluntarily do so, and most will abstain. Experience with provident fund payment might show a way ahead. Why not simply announce a payment schedule that kicks in only in the future? A neat article on the practicalities of implementing sustainability enhancing economic solutions.