EARTH SCIENCE
CLIMATE AND ENVIRONMENTAL CHANGE
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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A glacial period within an ice age
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An interglacial period within an ice age
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The Earth is currently not in an ice age
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None of the above
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Detailed explanation-1: -Answer and Explanation: The correct answer is b. If humans had not interfered with nature by building industrial societies, the global climate would not have changed significantly. The given statement is true as industrial gases have proved to be the most important factor associated with greenhouse gases.
Detailed explanation-2: -The Anthropocene Epoch is an unofficial unit of geologic time, used to describe the most recent period in Earth’s history when human activity started to have a significant impact on the planet’s climate and ecosystems.
Detailed explanation-3: -Mountain glaciers are melting worldwide, and snow cover is declining in the Northern Hemisphere (Learn more here and here). Greenland’s ice sheet-which holds about 8 percent of Earth’s fresh water-is melting at an accelerating rate (learn more). Mean global sea level is rising (learn more).
Detailed explanation-4: -Although climate scientists have worked hard to determine the ultimate trigger of abrupt climate change during the last ice age, it is likely that a combination of ocean and atmospheric circulation changes were involved.