Share of Households with Air Conditioning, By Country or Region, 2025
graph from Our World in Data; slow reveal by Jenna Laib
Type of Graph: bar graph
Purpose
This slow reveal is designed to support analysis and discussion of both the data and the design choices. The questions in the slide deck invite learners to identify trends, estimate values, and compare values, compare and contrast two different data visualizations. What is the same? What is different? What information might be missing?
About This Graph
This visualization is not provided for reuse or redistribution. Readers and educators are encouraged to view the original visualization in its published context.
Data Visualization Sources:
Ritchie, Hannah. “Air Conditioning Is Almost Universal in the US and Japan — But Not Elsewhere.” Our World in Data, August 12, 2026.
Accessed at ourworldindata.org/data-insights/air-conditioning-is-almost-universal-in-the-us-and-japan-but-not-elsewhere
Ritchie, Hannah. “How Many People Die from Extreme Temperatures, and How This Could Change in the Future: Part One.” Our World in Data, July 1, 2024. Accessed at: ourworldindata.org/part-one-how-many-people-die-from-extreme-temperatures-and-how-could-this-change-in-the-future
Data Source:
Vautrin, Anthony, et al. “Cooling a Hotter World: El Niño Meets Strong Growth in Global Electricity Demand.” International Energy Agency, 10 July 2026.
Accessed at: www.iea.org/commentaries/cooling-a-hotter-world-el-nino-meets-strong-growth-in-global-electricity-demand
In The Classroom
There are many different mathematical connections that can be made to this data and data visualization.
Potential Math Content: bar graph, bar charts, percentages, comparing magnitude, percentage points, estimating values, categorization
Potential Content Connections: climate, geography, economic development, energy, climate change,
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