With the increased amount of information that has been discovered in recent years,scientists have become increasingly certain that ____________.
A)Earth's climate is not warming to any significant degree
B)Earth's climate is warming due to variation in solar output;human inputs of atmospheric greenhouse gasses have not had a significant influence
C)Earth's climate is warming,and human inputs of atmospheric greenhouse gasses are most likely responsible

Question

Quizplus · Accepted Answer

The statement mentions that "scientists have become increasingly certain" and follows it up with a statement about the cause of Earth's warming. Option A can be immediately eliminated as it contradicts the widely accepted scientific consensus on climate change. Option B might be plausible in isolation, but it is directly contradicted by the statement that human inputs of atmospheric greenhouse gasses are most likely responsible. Therefore, C is the best choice.

With the Increased Amount of Information That Has Been Discovered