Read the excerpt from "Climate Change: An Overview.”Roger Revelle, an American oceanographer, wrote, "Human beings are now carrying out a large-scale geophysical experiment." Scientific consensus grew around the theory of global warming, and the first United Nations environment conference was held in 1972.
Answer
A
People are responsible for causing the earth’s climate to change.
B
People are not able to understand the magnitude of climate change.
C
People are purposefully trying to change the earth’s climate.
D
People are not responsible for changes in the earth’s climate.
Explanation
Revelle’s “large-scale geophysical experiment” refers to human activities changing the Earth’s atmosphere and climate, whether or not people intend that result. This supports the idea that people are responsible for causing the Earth’s climate to change, not that they are purposefully experimenting with it.
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