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In July 1987, 1 1, the 5 billionth person in the world was born in Zagreb, the former Yugoslavia. The birth of a baby in Yugoslavia was symbolically recognized by the United Nations as the 5 billionth person on earth, and it was announced that the population of the earth had exceeded the 5 billion mark. The United Nations Population Fund proposed to designate this day as "World Population Day". The United Nations Population Fund has decided to designate July 1 1 as World Population Day from 1988. 1995 February 15 at 0: 00, a baby weighing 3700g was born in Beijing Maternity Hospital, announcing the arrival of the120,000 th citizen of China. Less than 2,000 days before April 1 1 100 million population day, the huge population train added passengers 1 100 million. In order to further arouse people's great attention to the population problem. 1999 10 02 10/2, the world population reached 6 billion. The United Nations has designated today as World Population Day. This number is not born out of fear, and it is impossible to stop, but we can artificially control it and let it grow slowly. From 1650 to 1850, the population doubled in the middle of 200 years, reaching the first10 billion; It took 80 years from the first 654.38+0 billion to the second 654.38+0 billion. From 1930 to 1960, it took only 30 years for the world population to leap to the third place 10 billion. By 1975, the world population had exceeded the 4 billion mark. The time to double the population is getting shorter and shorter.
From the above figures, we can easily see that in the past three centuries, the population has grown at an unprecedented speed, just like chemical experiments, a chain reaction has taken place and the scale has expanded rapidly. Since the 1980s, the situation has improved slightly due to the importance attached by various countries to the population problem, but the population growth rate is still not slow. According to statistics, four babies are born every second in the world, and nearly 328,000 babies are born every day. Minus the death toll, the world population will increase by 77 million every year. Due to the worldwide population explosion, it has brought a series of problems to this planet, mainly manifested in poverty and the destruction of the ecological environment. David pimentel, an ecologist at Cornell University, warned at a meeting of the American Association for the Advancement of Science that overpopulation could have serious consequences. In an interview, he said: "Now the number of people is increasing by 250,000 every day. In fact, no one has taken relevant measures. This is not a sudden problem, but something that happens gradually. But this little bit of gradual damage will slowly kill us. "
At present, there are two trends in world population development: the population growth in developed countries is slow; In developing countries, the growth rate is extremely high, and the population growth rate of different continents is also very different. Europe is the region with the slowest population growth, which has been fluctuating around 10% in recent years, and this trend has been going on for more than 200 years. Even some countries have zero or negative population growth rates. Asia and Africa are the regions with the fastest population growth. Since 1970s, it has been growing at a high speed of 2.7% per year. Fortunately, some developing countries have made specific measures and introduced some corresponding policies, which have made the birth rate drop obviously in the past 20 years. However, other problems, such as urbanization and population aging, have also emerged one after another.
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The origin of World Population Day
1July, 1987 1 1 day, a baby was born in Yugoslavia, which was symbolically recognized by the United Nations as the 5 billionth person on earth, announcing that the earth's population exceeded the 5 billion mark. The United Nations Population Fund proposed to designate this day as "World Population Day of 5 billion". The United Nations Population Fund decided to start with 1988.
1995 February 15 at 0: 00, a baby weighing 3700g was born in Beijing Maternity Hospital, announcing the arrival of the120,000 th citizen of China. Less than 2,000 days before the April 1989 "1 0/100 million population day", the huge population train added passengers1100 million. In order to further arouse people's great attention to the population problem.
1999 10 02 10/2, the world population reached 6 billion. The United Nations has designated today as World Population Day.
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