With the Increased Amount of Information That Has Been Discovered

Multiple Choice

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 gases have not had a significant influence
C) Earth's climate is warming, and human inputs of atmospheric greenhouse gases are most likely responsible