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The terms "global warming" and "climate change" are used by many, seemingly i
The terms "global warming" and "climate change" are used by many, seemingly i
游客
2024-01-24
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问题
The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same thing?
Scientists shaped the history of the terms while attempting to accurately describe how humans continue to alter the planet. Later, political strategists adopted the terms to influence public opinion.
In 1975, geochemist Wallace Broecker introduced the term "climate change" in an article published by Science. In 1979, a National Academy of Sciences report used the term "global wanning" to define increases in the Earth’s average surface temperature, while "climate change" more broadly referred to the numerous effects of this increase, such as sea-level rise and ocean acidification (酸化).
During the following decades, some industrialists and politicians launched a campaign to sow doubt in the minds of the American public about the ability of fossil-fuel use, deforestation and other human activities to influence the planet’s climate.
Word use played a critical role in developing that doubt. For example, the language and polls expert Frank Luntz wrote a memo encouraging the use of "climate change" because the phrase sounded less scary than "global warming," reported the Guardian.
However, Luntz’s recommendation wasn’t necessary. A Google Ngram Viewer chart shows that by 1993 climate change was already more commonly used in books than global warming. By the end of the next decade both words were used more frequently, and climate change was used nearly twice as often as global warming.
NASA used the term "climate change" because it more accurately reflects the wide range of changes to the planet caused by increasing amounts of greenhouse gases in the atmosphere.
The debate isn’t new. A century ago, chemist Svante Arrhenius started one of the first debates over the potential for humans to influence the planet’s climate. Arrhenius calculated the capability of carbon dioxide to trap heat in the Earth’s atmosphere, but other chemists disagreed. Some argued that humans weren’t producing enough greenhouse gases, while others claimed the effects would be tiny. Now, of course, we know that whatever you call it, human behavior is warming the planet, with grave consequences ahead. [br] As used in a National Academy of Sciences report, the term "climate change" differs from "global warming" in that________.
选项
A、it sounds less vague
B、it looks more scientific
C、it covers more phenomena
D、it is much closer to reality
答案
C
解析
推理判断题。定位句提到,美国国家科学院的报告使用了“全球变暖”这一术语来定义地球表面平均温度的升高,而“气候变化”更广泛地指代这一升高所导致的众多影响,比如海平面上升和海洋酸化。由此可知,这两个术语的不同之处在于“全球变暖”表述了现象,而“气候变化”则表述了该现象所带来的后果,因此“气候变化”涵盖更多的现象,故答案为C)。
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