6.2 Stratospheric Ozone

Ozone is a molecule present in relatively high abundance in the stratosphere (a layer in the atmosphere). It plays a major role in making Earth a liveable place by protecting against harmful ultraviolet radiation from the Sun. Human activities have compromised this protective layer, but strategies are in place to protect it.


1UV and ozone
2Air pollution and ozone
3The Montreal Protocol
Chapter Workbook
Vocabulary Sheet

  • Use secondary data to investigate changing trends in the concentrations of stratospheric ozone and ozone depleting substances and create a presentation to an intergovernmental panel providing recommendations.

Full PSOW here.

Essay Task

“Evaluate the role of national and international organisations in reducing emissions of ozone-depleting substances.” [9 marks]

View essay markbands

The essay should marked using the Paper 2, Section B essay markbands.

PDF Version

Google Docs Version

Google Docs 6.2 essay

Open the link and make a copy to your own drive. The doc can easily be shared as an “Assignment” on Google Classroom.

A markbands rubric designed for Google Classroom is available here.