In 2011 the number of people living on planet Earth will reach seven billion in . Far from representing an achievement of which we can be proud, this population growth can become the most complex problems that humanity has ever faced. What are the growth estimates for this century? "How does it impact on the planet the world population? Is it a problem?
delayed Humanity about 4 billion years to reach its first million inhabitants. That happened about 40,000 years ago, more or less the same date as the "homo sapiens sapiens " became the first human inhabitant of Australia. About 35,000 years ago, our species began to show their cultural superiority against Neanderthal thus starting the Upper Paleolithic. In about 4 or 5 thousand years, the world's population pace of 1 to 5 million inhabitants. It was too early for anyone noticing, but then be called "population explosion " just begin. This race, which have not yet achieved goal, we took the first billion people around the year 1830 of the Christian era. That is, less than 200 years.
doubles the world population far less than 100 years . A mid-twentieth century, in 1950, had on the Earth about 2500 million people. In 1960 we reached three billion, and in just 15 years, back in 1975, we reach 4 billion. In late 1980, we reached the 5 billion, and dismiss the twentieth century with 6 billion inhabitants. Only 11 years have passed that date, at which time We managed to add another billion people. It took about 35,000 years to reach the first billion, and only 200 multiply that number by 7.
If we continue to expand the number of years we live, we must reduce the birth rate. If we do, the very nature will take care of stopping.
However, this is not the best option available. Expect to die a few hundred million hunger is not the best way to stop population growth. Nor is war, a "system control " that many mention when talking about population growth . Despite our irrational tendency to crush each other that we have as a race in the last thousand years " only " We were able to kill about 149 million people wars , 111 million of them-more or least the current population grows at about 20 months over the entire twentieth century. This means that we use a more effective and rational system to curb this phenomenon. Experts estimate that even lowering the current growth rate, a phenomenon that has already begun, will reach half of this century least 9 000 million. That figure, much lower than what we could achieve if we followed procreating happily just as today, is reasonable enough to not cause a global catastrophe.
Obviously, not everything is rosy: there are terrible imbalances between rich and poor. Only 25 or 30% of the world population has his plate of food secured. The rest is a bit of luck and the help it can get. Ironically, the most poor, climate change is likely to dramatically affect the quality of their crops, are in countries that produce virtually no greenhouse gases. According to 2009 figures, U.S. residents burn 5 times more oil than China, and 91 times more than those of Bangladesh. The birth control, who has done a great job stopping the population growth in developed countries, almost nonexistent in the Third World. If we are to avoid an imminent problem, most reading this live in 2050 and may see themselves - we need to work alongside all.
E l fact that we are adding billion people-most of them poor, every 10 or 15 years should not fill us with pride. Far from being an achievement, it is a step we take in the wrong direction. Do not you think?
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