Ozone Depleting Substance Emissions, 1960-2016
graph from Hannah Ritchie & Max Roser/Our World in Data; slow reveal by Michelle Munk (@MichelleMunk8)
(Slide Deck includes notes and questions to elicit discourse)
Type of Graph: line graph
Visualization Source: Michelle Munk
Data Source: Ritchie, Hannah and Max Roser. “Ozone Layer.” Our World in Data. First published June 2018.
A rare climate crisis success story!
Paired Texts:
- United Nations. “Ozone layer recovery is on track, due to success of Montreal Protocol.” United Nations News. January 9, 2023.
- NOAA Chemical Sciences Laboratory. “Scientific Assessment of Ozone Depletion 2018: Twenty Questions and Answers about the Ozone Layer.” CSL.
- Video: UN Environmental Programme. “The Hole: A film on the Montreal Protocol.” YouTube, September 15, 2021.
- Video: Vox. “Why you don’t hear about the ozone anymore.” YouTube, November 24, 2021.
Potential Math Content: line graph, points, trends, predicting values, units, change over time
Potential Content Connections: international, climate crisis, policy
