Data Activity - Topic 6.4 - Ozone-depleting Substances
Topic 6.4 looks at how human activity has impacted the world's ozone layer. This data activity considers data on the use of ozone-depleting substances and the impact of the Montreal Protocol. Answers for the activity may be found HERE. NOTE: This activity is also available as a PDF. In 1987 a total of 43 countries signed the Montreal Protocol (see 6.4 Stratospheric Ozone). This first group was mostly richer countries...