Open the gate.. welcome to this dimension..
So having left behind the age of the toorak tractor1, learjets over kulgera2, and "I'm just helping my lady friend conceive man!"3, your newly educated urban greenie has moved on to a very tight CO2 schedule. They're now limiting themselves to:
two flights a year to Sydney to attend wildlife conservation conferences,
a tight electricity budget of 27KW per day by reducing their climate control to 21C and only putting through 3 dishwasher loads a day,
a new retirement plan of caravan travel where they are only expecting to feed their 5L V8 'tug' about 9 mpg (~31l/100km), whilst towing their 3 and half tonne 30 foot caravan around 350km a day, thereby limiting their fuel consumption to circa 750 litres per week
buggered if I know :-P