“The city allows you to become yourself by making a stranger of you.” We are experiencing a historical transition – human civilization will more and more coalesce into very large urban centers. Cities are the manifestation of the cultural, economic and social acceleration that we have experienced in the last century. In 1950 about 2/3 of the population worldwide lived in rural areas, and 1/3 in urban settlements. By 2050, we will roughly see the reverse distribution, with more than 6 billion people living in the crowded environment of urbanized areas.

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I am teaching  a class on the philosophy of environmental science and policy, and the question that comes up again and again is how the earth will cope with the tremendous population increase that we are experiencing since 1900. This is an ethical, political, humanitarian, and environmental problem of historic proportions. Less population growth is […]

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It’s interesting to look at some long-term world trends at the end of 2013. The graphs appear more normalized, for instance with the population growth rate above. Countries like Nigeria (see population chart below) are unfortunate exceptions. How will the world really look like in 2050? Trends are extrapolations from current and past data, enhanced […]

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