Ping Manongdo, Eco-Business: Sustainable Business Is the Only Way Forward
Overpopulation: Is the future as bleak as it was depicted in the 1970s?
Should we be looking to the stars or at cities? Practical approaches to the phenomenon of overpopulation
Cities are aging with their population: challenges and solutions for an inverted pyramid
Urban overcrowding and rural depopulation: Are there any solutions to these problems?