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发表于 2014-6-25 12:22:39
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in fact,nike air max 90 sale, since 1950, the birth rate declining, according to statistics, 1965~1970 years,borse louis vuitton originali, the world population birth rate is 2.1%, and now has been reduced to 1.1%. Many factors are restricting the expansion of modern people, such as the energy and environment pressure. Increasing women's job opportunities and income, also brought a drop in the birth rate. In addition, education is a key factor in modern social inhibition of birth rate. Research has shown that women's education level, the higher the number,air max trainers, the less you have children. But even so, with increased longevity, the population is still a road in the growth. The earth every minute there are still 150 baby was born. And, the population birth rate and not in every place is falling. Such as Indonesia, the birth rate is rising, while in Niger,louis vuitton roma, the average women have more than 7 children.
reason: the progress of science and technology and medical level
1000000000
The growth of
why "population clock" go faster? Study population and former director of the Institute researcher Zheng Zizhen in accepting our newspaper reporter to interview,cheap mulberry bags, Guangdong Academy of Social Sciences, science and technology advances,hogan scarpe, modern medical Chang >
reason: the progress of science and technology and medical level
in October 31st this year, with the "seventieth million babies born in Manila" in Philippines, the earth has officially entered the "7000000000 people" era. A problem once again aroused people's attention and discussion: our planet really can carry many people? Population experts said, to this problem has been a guess and estimate the numerous, but regardless of the specific number is what,cheap nike tn shoes, in sending a signal: the earth's resources are limited, the human need to be vigilant.
70000 years ago, the earth human ancestors but a total of 15000 people. 10000 years ago, also to the hundreds of thousands of population size. By nineteenth Century,portafoglio louis vuitton, the population of the earth is finally broke through one billion. According to the United Nations Population Fund, the world population increased from 1000000000 to 2000000000 for 100 years. But in twentieth Century, the rate of population growth suddenly accelerated, like a faster clock, increasing from 2000000000 to 3000000000 in just 32 years. Begin from 1987,louis vuitton napoli, every 12 years can increase 1000000000. In 1999, the Bosnian born Adnan · Melvich was the United Nations called "sixtieth million people", a memorial ceremony also be visible before the eyes,louboutin pris, but in October 31st this year,scarpe hogan donna, people have started to pay attention to "seventieth billion baby" -- the little girl Danica was born in Philippines.
every 12 years
in October 31st this year, with the "seventieth million babies born in Manila" in Philippines, the earth has officially entered the "7000000000 people" era. A problem once again aroused people's attention and discussion: our planet really can carry many people? Population experts said, to this problem has been a guess and estimate the numerous, but regardless of the specific number is what, in sending a signal: the earth's resources are limited,scarpe hogan, the human need to be vigilant.
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