作业帮what do you think we should worry about the envieonment 英语口语考试要用 至少2分钟大家帮帮忙呀
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what do you think we should worry about the envieonment 英语口语考试要用 至少2分钟大家帮帮忙呀
what do you think we should worry about the envieonment 英语口语考试要用 至少2分钟
大家帮帮忙呀
what do you think we should worry about the envieonment 英语口语考试要用 至少2分钟大家帮帮忙呀
Environmentalists tend to believe that, ecologically speaking, things are getting worse and worse. Human activity is thus defiling the earth, and humanity may end up killing itself in the process.
First, energy and other natural resources have become more abundant, not less so since the Club of Rome published “The Limits to Growth” in 1972. Second, more food is now produced per head of the world's population than at any time in history. Fewer people are starving. Third, although species are indeed becoming extinct, only about 0.7% of them are expected to disappear in the next 50 years, not 25-50%, as has so often been predicted. And finally, most forms of environmental pollution either appear to have been exaggerated, or are transient—associated with the early phases of industrialisation and therefore best cured not by restricting economic growth, but by accelerating it. One form of pollution—the release of greenhouse gases that causes global warming—does appear to be a long-term phenomenon, but its total impact is unlikely to pose a devastating problem for the future of humanity. A bigger problem may well turn out to be an inappropriate response to it.