What was the message of Limits to Growth?

"Limits to Growth" is a study about the future of our planet. On behalf of the Club of Rome, Donnella Meadows, Dennis Meadows, Jorgen Randers and their team worked on systems analysis at Jay W. Forrester's institute at MIT. They created a computing model which took into account the relations between various global developments and produced computer simulations for alternative scenarios. Part of the modelling were different amounts of possibly available resources, different levels of agricultural productivity, birth control or environmental protection.