Higher levels of carbon dioxide may be leading to a
A) 1 degree (F) level of warming of the earth.
B) 10 degree (F) level of warming of the earth.
C) 1 degree (F) level of cooling of the earth.
D) 10 degree (F) level of cooling of the earth.

Question

Quizplus · Accepted Answer

Higher levels of carbon dioxide are a greenhouse gas that traps heat in the atmosphere, leading to a warming effect. While the exact amount of warming is uncertain, a consensus among climate scientists is that the current level of carbon dioxide in the atmosphere is contributing to the approximately 1 degree (F) increase in global temperature that has been observed over the past century. B, C, and D are incorrect because they suggest levels of warming or cooling that are significantly beyond those currently predicted by climate models.

Higher Levels of Carbon Dioxide May Be Leading to a