A few ideas on how to seek Economic Sustainability
1) Individual consumers need to consciously consume less of whatever it is that they consume. The government or NGOs should incentivate families to benchmark their current levels of consumption on various fronts, then reduce them. Consuming fewer air-miles each successive year should be high on our list of priorities, considering their huge addition to our individual carbon footprint. (As a cheap and effective alternative to flying, we may consider video-conferencing.)
2) Advertising aimed at making people buy more should be tapered off. Only adverts giving information should be allowed.
3) Roadside advertising hoardings should be reduced by 50%, and they should not be illuminated, as they use up precious energy for a relatively non-productive purpose.
4) Stop adding power generation capacities, whether thermal or otherwise. Freeze them at existing capacities and merely replace thermal capacities with wind-energy and solar generation capacities.
5) Stop registering new private vehicles. NGOs or government should incentivate people to give up private transport (for instance by giving them free passes on public transport with 10-year validity.)
6) Each year, taper off the numbers of private transport wheels by 10% or more, and enhance the capacity of public transport by 20%. This will result in a net improvement in the quality of transportation and reduced congestion each year.
7) Enforce a one-child policy with both carrot and stick. This means that within the span of 60-70 years, population would go down by about 50%.
8) Build infrastructure for localised means of recreation such as playgrounds and stadiums, both indoor and outdoor. Encourage greater participation in physical and mental sporting activities by organizing competitions etc.
8) Civic and governmental efforts to improve quality of life are crucial to wean off people from the rat-race.
PS: This is not saying that we shall have no more problems, and shall live happily ever after. Every situation and every lifestyle inevitably has its own set of problems... and we shall have to be alert and aware to deal with them as they arise.