Which of the following statements about human-caused climate change is correct?
A) Scientific consensus about human-caused climate change was only established in the past five years.
B) Social acceptance of human-caused climate change by the U.S. general public lags far behind scientists.
C) Stolen e-mails from researchers at the University of East Anglia proved that climate change is an elaborate hoax invented by climate scientists.
D) The most highly trained experts in climate science have the most disagreement that human activities are causing the recent changes in Earth's climate.
E) The vast majority of scientists do not accept human-caused climate change.
Question 2
Which of the following is the only viable explanation for the documented and observable recent climate changes, including the increased average temperature of Earth's surface?
A) Changes in the Sun's brightness
B) Major volcanic eruptions
C) Release of human-caused emissions
D) Reversed magnetic polarity
E) Variations in Earth's orbit
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