About any problem in Brazil, the usual mantra (usual because it is the correct one) is: inequality, inequality, inequality, inequality. There are a few cities with more than 7,000 people per square kilometer, mainly Fortaleza, São Paulo, Recife and Rio de Janeiro.
The Philippines is considered to be one of the countries that faces overpopulation, with its population density standing at 330 people per square kilometer in the year 2013. Overpopulation may have adverse effects on the environment and several other aspects of life.
Largest Russian Citiies. Moscow is the largest city in Russia with a population of 12.1 million people, which also makes it the 11th largest city in the world. Saint Petersburg is the second largest Russian city, with 5.1 million people, making it the 50th largest city in the world.
Overpopulation is a global crisis and Pakistan is among the most overpopulated country in the world. However, Pakistani politicians and policymakers tend to ignore this issue and focus instead on terrorism, militancy, corruption, inflation, poverty, and illiteracy.