Rise in banned chemical use hurting ozone

The video discusses research published in Nature, highlighting findings that suggest CFC 11, an ozone-depleting chemical, is being produced in East Asia. Historically used in the 1930s as a refrigerant and in aerosols, its continued production may hinder ozone recovery. Researchers attribute this to unreported new production.

Which journal published the research on CFC 11?

• Cell

• Science

• Nature

• The Lancet

In which region is the production of CFC 11 suspected to be occurring?

• East Asia

• Europe

• South America

• North America

What was one of the primary uses of CFC 11 in the 1930s?

• In textile manufacturing

• As a refrigerant

• In food preservation

• As a fuel additive

What is a potential consequence of the continued production of CFC 11?

• Decreased air pollution

• Enhanced agricultural yield

• Slowed recovery of the ozone layer

• Increased global warming

What did researchers conclude about the presence of CFC 11?

• It is due to natural causes

• It is a consequence of old stockpiles

• It is a result of unreported new production

• It is caused by volcanic activity