CFCs have been largely replaced with HFCs in refrigerators and in home and
car air conditioners. HFCs are up to 1000 times better than carbon dioxide at
retaining atmospheric heat. The increased warming of the stratosphere
speeds up the chemical reactions that destroy ozone molecules. Which of the
following is a likely environmental problem if HFCs are not phased out?
I. Initiation of a new ozone hole
Il. Continued ozone depletion
III. Accelerated global warming
A. I only
B. I, II, and III
C. Il and III only
D. I and II only