Videos
Cohen explains that population, economics, and environment are a dynamic, interconnected system – and that no single element holds the key to solving the world's problems.
Videos
In 2050 there will be about 9 billion people in the world. The vast majority of them will live in urban areas, and will have a significantly higher average age than people today.
Surprising Science
In wealthy nations across the world, population growth rates have rapidly declined from their peak in 1965. The reasons behind this are varied and rife with complications, as scientists still don’t know why people choose to have children.
Surprising Science
The world of comedy hasn't exactly been kind to scientists, but here are a couple of jokes in which math nerds get the last laugh.
Joel Cohen
Joel E. Cohen is a mathematical biologist and Professor of Populations at Rockefeller and Columbia Universities. His research deals with the demography, ecology, epidemiology and social organization of human and non-human populations and with mathematical concepts useful in these fields. The author of 14 books, he has been honored with numerous awards, including the Sheps Award from the Population Association of America, the Distinguished Statistical Ecologist Award, the Tyler Prize for Environmental Achievement in 1999 and the Mayor's Award for Excellence in Science and Technology from the Mayor of the City of New York, Michael R. Bloomberg in 2002. Professor Cohen has been elected to the National Academy of Sciences, the American Academy of Arts and Sciences and the American Philosophical Society. He lives in New York.
