A lot will tell people on saving earth but in reality, they themselves also drive to work, use resources etc. So, if whole world every week one day no traffic and must off light by 2200, except lorry for goods delivery, will people fine with it? All go by public transport, any vehicle out on that day will be tax 10X! But that wouldn't happen and thus, saving planet earth just say say only.
As long as everybody keep to the norm, nothing will change.
Depletion of resources and carbon emissions is like smoking+cancer.
Everyone thinks its fine until the day they know its not.
When they hand over a planet with worse conditions to their children, that is the ultimate reward for this sort of thinking.
Since any change in norm established now will be considered not normal, and in-convenient.
In fact, its exactly in this type of semi-autocratic state like Singapore than it is easier to implement/try changes.
Some schemes :
1. Pricey fuel and cars - Already practiced here
2. Car permit to enter CBD (practiced in some countries to tackle jams and pollution)- but perhaps ERP (with tweaks for the needy) is a good compromise.
3. Cycling to work with support for marked bike lane that is shared with traffic, shower facilities and bike parking - only feasible for 5-8km for most people.
4. Electric scooter/bike to work as #3 - this is a new paradigm shift in personal transport - again only feasible for 5-12km generally.
5. Reduce pavement lamp use - I even see pavement lamp for cycling track when it can well use the spill from the road lamp.
6. Reduce or timed turn off of lamps in some spaces - parks, lonely stretches of pavement/park connectors, etc (these see very little traffic by a certain time, often benefit from light spill from other sources and anyone venturing beyond turn off/ reduce times will know that they are doing so anyway)
7. Reduce HDB lighting after certain hours (eg. alt lamps) - perhaps auto-on more if sensor detects person;
