amman
istanbul
brussels
cairo
manila
london
delhi
boston
beijing
guadalajara
“the pattern of human population growth in the twentieth century was more bacterial than primate. when homo sapiens passed the six billion mark we had already exceeded by as much as a hundred times the biomass of any large animal species that ever existed on land. we and the rest of life can not afford another hundred years like that. ” — edward o. wilson
around ten thousand years ago, there were maybe five million people on earth. two thousand years ago, there were probably two hundred million. today, there are over seven billion people, which is almost a billion more than there were just over a decade ago. and in 2009, the number of people living in urban areas surpassed the number living in rural areas for the first time.
these photos were taken by chris hadfield while commander of the international space station, showing, in order: amman, istanbul, brussels, cairo, manila, london, delhi, boston, beijing, and guadalajara.
Imported from Tumblr: http://ift.tt/1SYlEA4
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