We cannot  cull or reintrodue Soylent Green....what we can do is slowly reduce the population and in some cases decomission sesnsitive area completly of human activity. I have long been a proponent of turning the vast majority of BC and \Alta back to its original state.  Tourism and some ag business would be fine, but the major cities would be decomissioned along with the populations.  Centralize in areas where densification is imperative for efficiencies and survival

Population studies can be made at the universities and independantly and a long term program can and must be put in place.  I say 6 to 7 million is a nice figure to strive for,

Looking back at how we conquered our land seems pretty sad right now.....right up there with the slaughter of the bison.