The purpose of this post is to understand that the population is growing day by day, and the available resources are limited.
Human population is approximately 6.93 billion people, where Earth’s carrying capacity said to be about 10 – 15 billion people.
Major factors increase human population:
- Increase in food production and distribution
- Improvements in public health (water and sanitation)
- Medical technology
People before many years could have died by a simple flu. Next they were able to fight and cure deadly germs that once killed them. Moreover, because of the technology , people could produce more and different kinds of food. Gradually over the years, these discoveries and inventions spread throughout the world, lowering death rates and improving the quality of life. During the past ten years, the world’s food production has increased by 24 percent, outpacing the rate of population growth.
The Cassandra and Cornucopian debate is an argument between two extreme positions on the prospects for human society and the environment in the face of population and economic growth. Cassandras believe that unchecked growth in numbers of people and material consumption rates will inevitably lead to environmental and social catastrophe. This group is associated with ecologists and environmentalists.
Cornucopians believe that human ingenuity and free markets will allow the human species to adapt to any conceivable pressures caused by growth of the human enterprise. They are associated with free-market economists. The debate originated at least as far back as Malthus in the eighteenth century, flared up with special intensity in the late 1960s and 1970s over the issue of exhaustible natural resources, and continues in more subdued form today as reflected in the issue of global environmental change.
“Paul Ralph Ehrlich (born 29 May 1932) is an American biologist and educator who is the Bing Professor of Population Studies in the department of Biological Sciences at Stanford University and president of Stanford’s Center for Conservation Biology. By training he is an entomologist specializing in Lepidoptera (butterflies), but he is known better as an ecologist and a demographer, specifically for his warnings about unrestricted population growth and limited resources. Ehrlich became well-known after publication of his controversial 1968 book The Population Bomb.”
Ehrlich is famous for positing three major factors that determine sustainability: population, affluence and technology, and this has been summarized by the equation I PAT (I = P × A × T, such that Human Impact (I) on environment equals the product of Population, Affluence, & Technology).
Hans Rosling (born 27 July 1948 in Uppsala, Sweden) is a Swedish medical doctor, academic, statistician and public speaker. He is Professor of International Health at Karolinska Institute and co-founder and chairman of the Gapminder Foundation, which developed the Trendalyzer software system. His current work focuses on dispelling common myths about the so-called developing world, which is no longer away from the West. In fact, most of the Third World countries are on the same trajectory toward health and prosperity, and many countries are moving twice as fast as the west did.
Rosling’s presentations are grounded in solid statistics, and illustrated by the visualization software he developed. The animations transform development statistics into moving bubbles and flowing curves that make global trends clear, intuitive and even playful. His stunning way of presenting the presentations makes him unique and special. Finally, a presentation that tracks global health and poverty trends should be, in a word: boring. But in Rosling’s hands, data sings and trends come to life.