Human Population

Nowadays human populations of the world is decreasing in case of ratio between natural death and war and fighting death, and some extent in natural disaster. Some countries are on war for few years. Some are died on space while science work and some are died on accident and natural disaster. Every country is developing on process . More buildings are constructed . There for , time for increase world population. Most of the developed countries have ghost cities . That means , they made high scaper building but less people to live .