The world is approaching to a number of 11 billion people. And we are the cause of all the sustainability issues.

Thomas Robert Malthus whose essay was  published at the end of the 18th century said : “Population change in response to three driving factors: fertility – how many people are born; mortality – how many people die; and migration – how many people leave or enter the population.”  Malthus observed that more births than deaths would lead to exponential growth which would always outpace any improvements in farming and increases in yields. Consequently, unchecked growth was doomed to end in famine and population collapse. Malthus was right about exponential growth, but he was famously wrong about his dire predictions for the consequences of such growth.

David Hodgkinson Associate Professor, University of Western Australia, Cliff Hooker Director of the Complex Adaptive Systems Research Group, University of Newcastle, Andrew Jakubowicz Professor of Sociology, University of Technology Sydney, Colin Butler Professor, University of Canberra, Daniel Rodriguez Associate professor, The University of Queensland, Peter Carberry Chief Research Scientist, CSIRO, . . . Rebecca Johnston Faculty of Law, University of Western Australia. (n.d.). Overpopulation News, Research and Analysis - The Conversation. Retrieved September 11, 2016, from https://theconversation.com/us/topics/overpopulation-1753 

Main achievements: “An independent not-for-profit organisation seeking to protect the environment and our quality of life by ending population growth in Australia and globally.” -Sustainable Population Australia.

Contact Information: https://population.org.au

Justification: This organization is related to our topic, because the “Sustainable Population Australia” organization keeps everyone informed about the population in the world and has articles about global population, overpopulation, ecological limits and more.

Thank to the overpopulation the largest school in Montreal Quebec they admit 1,000 students that they can accommodate. Quebec government announced that they will give $51.2 millions for the education. Proulx said. “It’s the future of our society, and that’s why the government is making [education] their priority.” and the government will give during the next three years $1.2 billion to modernize and develop the school. they hope that each of the 12 classes will have 25 students on each one. 

 @. (2016). Money on the way to renovate and expand facilities at overcrowded CSDM. Retrieved September 11, 2016, from http://montrealgazette.com/news/local-news/money-on-the-way-to-renovate-and-expand-facilities-at-overcrowded-csdm 

Main achievements: “ is a UK-based charity that addresses population size and its effects on environmental sustainability. It considers population growth as a major contributor to environmental degradation, resource depletion, conflict and involuntary migration and societal Contact Information: populationmatters.org

Justification: This relates to overpopulation because it´s an organization that controls the growth in the UK and also the environmental issues caused by overpopulation. It also registers all of the possible problems that this can cause.

Michael Krebs. (2010). Mexico's population tops 112 million, ranking 11th in the world. 10/09/2016, de Digital Journal Sitio web: http://www.digitaljournal.com/article/300810