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The planet’s wild creatures face a new threat from yuppies, empty nesters, singletons and one parent families. Biologists studying the pressure on the planet’s dwindling biodiversity today report on a new reason for alarm. Although the rate of growth in the human population is decreasing, the number of individual households is exploding. Even where populations have actually dwindled—in some regions of New Zealand, for instance—the number of individual households has increased, because of divorce, career choice, smaller families and longer lifespans.
Jianguo Liu of Michigan State University and colleagues from Stanford University in California re port in Nature, in a paper published online in advance, that a greater number of individual house holds, each containing on average fewer people, meant more pressure on natural resources. Towns and cities began to sprawl as new homes were built. Each household needed fuel to heat and l
A. they can relax our minds.
B. they provide dwellings for us.
C. they keep the ecosystem balanced.
D. they act as animal reserves.
Text 1
The planet’s wild creatures face a new threat from yuppies, empty nesters, singletons and one parent families. Biologists studying the pressure on the planet’s dwindling biodiversity today report on a new reason for alarm. Although the rate of growth in the human population is decreasing, the number of individual households is exploding. Even where populations have actually dwindled—in some regions of New Zealand, for instance—the number of individual households has increased, because of divorce, career choice, smaller families and longer lifespans.
Jianguo Liu of Michigan State University and colleagues from Stanford University in California re port in Nature, in a paper published online in advance, that a greater number of individual house holds, each containing on average fewer people, meant more pressure on natural resources. Towns and cities began to sprawl as new homes were built. Each household needed fuel to heat and l
A. Smaller Households, Larger Damage.
B. Wildlife, Also Right to Live.
C. Soaring Population, Rising Hazard to Wildlife.
D. Environmental Pollution, Enormous Threat to Wildlife.
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On the face of it, anarchists, who believe in no government, have little in common with Jihadists, who believe in imposing a particularly rigid form of government on every one. The theoreticians for both movements have often been bearded and angry, of course, and their followers have readily taken to the bomb. But there the similarities end, don’ t they, so what lessons can be drawn from a bunch of zealots who flourished over 100 years ago and whose ideology now counts for practically nothing
At least two, actually. The first is that repression, expulsion and restrictions on free speech do little to end terrorism. All were tried, often with great vigour, at the end of the 19th century when the anarchist violence that terrified much of Europe and parts of America was at its zenith. As our report makes clear, governments had good reason to respond. Austria, France, Italy, Spain and the United States all lost an empress, king, president or prime m
A. severe punishment.
B. painstaking effort.
C. permanent romance.
D. timely repayment.
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