The Limits to Growth was published in 1972 by a group of world class scientists using the best mathematical computer modelling available at the time. It projected the future collapse of global industrial civilisation in the 21st century if humanity did not curb its population, consumption and pollution. It was pilloried by many “infinite growth on a finite planet” economists over the decades.
However, updated data inputs and modern computer modelling in recent years (particularly by Dr Graham Turner of the CSIRO in 2008 and 2014) showed that we are in reality closely tracking the standard model of the LtG, with industrial collapse and mass die-off due sooner rather than later. The future is now.