2052 – A Global Forecast for the Next Forty Years is a 2012 book describing trends in global development. It is written by Jørgen Randers and is a follow-up to The Limits to Growth , which in 1972 was the first worldwide report by the Club of Rome .
It differs in three ways from the previous report. First, it does not describe an impending disaster scenario, but shows only trends. Secondly, it is to be read in the light of experience since 1972, namely, that of all of humanity has responded to the report, but with a delay of 20 to 40 years. Thirdly, it makes not only future scenarios, it makes concrete proposals.
Randers repeatedly points out that he does not want to predict specific events, only general trends.
- The underlying logic of the prognosis
Randers’s reflections are based on two central questions: „What will happen to the consumer over the next 40 years?“ and „Under what conditions – in which social and natural environment – will this future consumption take place?“ (p.78). He uses computer models to make sure feedback effects are not overlooked.
- Forecast on population and consumption
World population will decline from about 2040. The working population will peak around 2030. Productivity will grow, but encounter obstacles. The gross domestic product will grow, but more and more slowly. Investments – forced and voluntary – will increase. New costs will be incurred. Adaptation and disaster costs will explode. The state will become more involved. Consumption will stagnate and decline in some places.
- Forecast on energy and CO 2
Energy efficiency will continue to increase. Energy demand is expected to rise, but not indefinitely. CO 2 emissions from energy consumption will peak in 2030. The average global temperature will rise by two degrees, causing serious problems.
- Forecast on nutrition and ecology footprint
The race for natural resources will be hard, the biocapacity of the world will be exploited more and more. The cities will become richer sources of raw materials for the mineral deposits in nature ( urban mining ). In the same way, zoos have become the last refuge for many endangered species, parks will assume this role for nature in general.
- The non-physical future
Randers argues that the general population will decline because of general decline and declining productivity growth.
The Internet will give rise to a completely new understanding of what is private and public. Knowledge will be more important, but it will not be necessary to make more effective decisions in the future. Therefore, it is likely that a „greenkeeping force“ will be set up to enforce positive environmental behavior, similar to the peacekeeping forces (blue berets) of today. 
What can be done?
Randers references UN recommendations  and gives 20 pieces of advice concerning individual behavior.
In short words he states: 
Concretely, we should:
- Have children, especially in the rich world.
- Reduce the ecological footprint , first by slowing the use of coal, oil and gas in the rich world.
- Construct a low-carbon energy system in the poor world, paid for by the rich.
- Create institutions that counter national short-termism.
But most importantly, the coming crisis should be used to develop new goals for modern society. To remind us all the purpose of society is to increase total life satisfaction.
- Jump up^ 2052 – A GLOBAL FORECAST FOR THE NEXT FORTY YEARS AT 5.000 WORD SUMMARY
- Jump up^ Report of the UN Secretary General
- Jump up^ More 2 ° C in 2052. What to do? (Version August 8th 2012)