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1 .This is Scientific American 60-Second Earth. I'm David Biello. Your minute begins now.
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2 .Some questions to ponder on Earth Day: how much of an environmental problem is the growing human population?
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3 .And is the problem too many people or the throwaway culture of too many things?
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4 .A new paper in the journal Science attempts to assess the burdens placed on people and the planet by individuals' decisions to have large families and/or consume a lot.
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5 .A key factor in the creation of large families is young women without access to schools or family planning.
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6 .So one way to address population growth is to educate and empower women.
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7 .Good news. That's happening.
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8 .In fact, the rate of population growth peaked back in the 1960s and has been falling ever since.
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9 .What about consumption?
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10 .Our global economy's toll in pollution and degradation of the environment remains high, though its focus has shifted around the globe.
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11 .For example, the current uptick in Brazilian deforestation can be traced largely to exports of beef and soybeans to China.
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12 .The conclusion of the Science paper: "contemporary economic growth is unsustainable."
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13 .And true sustainability has to be long-term:
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14 .it means ensuring that whatever decisions we make now do not lessen the ability of future generations to have at least as good a life as we enjoy today.
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15 .We can't buy our way out of the problem.
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16 .Your minute is up, for Scientific American 60-Second Earth. I'm David Biello.
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