Create inbuilt genetic coding hardwired into a mainframe. Every single person becomes a monitored commodity which is proportional to a ‘renewable standards’ algorithm. In layman’s terms it would work like this – every few hours a mainframe would collect data from across the planet. This data is scored and analyzed – giving every single person a rank. Now, what the mainframe also figures out every couple of hours is how many people the planet is capable of sustaining based on resource use, climate, air , livable area and so on. The most important factor here is how it applies the data – each person is ranked based on how much they consume, however this is their net effect on the planet. Each person cannot help but consume something it is their efforts to reduce or replace what they use which is important as that would lower their net score. So, if the mainframe decides we are overpopulated those who are causing the most detriment to the planet are culled. This is done automatically and remotely, the mainframe can switch a person off instantly thus saving resources. Think of it as switching off an unnecessary light. The onus then lands on each individual to lower their net score continually, in the hopes that at some stage we will reach equilibrium – with the possibility of moving past and to the point of being able to populate well within our means.