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The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same th
The terms "global warming" and "climate change" are used by many, seemingly interchangeably. But do they really mean the same th
admin
2021-01-06
27
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.
Why did NASA choose the term "climate change"?
选项
A、To obtain more funds.
B、For greater precision.
C、For political needs.
D、To avoid debate.
答案
B
解析
细节辨认题。定位段提到,美国国家航空航天局使用“气候变化”这一术语,因为它更准确地反映了大气中不断增加的温室气体给地球带来的广泛变化。由此可见,美国国家航空航天局之所以选择“气候变化”这一术语,是因为在涉及温室效应所引起的不良后果时,这一术语的表述更为准确,故答案为B)。
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大学英语四级
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