Average air temperatures worldwide
A)have appeared to stabilize after a century of increase.
B)are at present demonstrating no apparent trend one way or another.
C)are being influenced by human-induced changes in the greenhouse effect.
D)are generally lower than 20 years ago.
E)have been falling since reaching a peak in 2009.

Question

Quizplus · Accepted Answer

Numerous scientific studies have concluded that human-induced changes in the greenhouse effect are responsible for the long-term increase in average global temperatures over the past century. While there may be short-term fluctuations, the overall trend is still upwards.

Average Air Temperatures Worldwide