The net effect of human activity is currently causing the average global temperature to _______ primarily by the release of _______.

Question

Quizplus · Accepted Answer

The release of carbon dioxide (option A) is a major contributor to global warming through the greenhouse effect. Sulfur dioxide (option B) can contribute to cooling by forming reflective particles in the atmosphere, but in general, human activity has increased the warming effect more than the cooling effect. Oxygen (option C) is not a greenhouse gas and does not contribute to global warming. Likewise, decreasing oxygen (option E) would not directly impact global temperature.

The Net Effect of Human Activity Is Currently Causing the Average