# CO₂ AR — Visualise CO₂ Emissions in AR

> Visualise CO₂ Emissions in AR (iPhone/iPad app by Ekkehard Petzold.)

- Source: https://appshunter.io/ios/app/co-ar/id1296287523 (this page in markdown: same URL + `.md`)
- Developer: [Ekkehard Petzold](https://appshunter.io/developer/1156102927)
- Category: Education, Reference
- Price: Free
- Age rating: 4+
- Requires: iOS 11.0 · 95 MB
- Languages: American English
- Released: 2019-02-19
- Data updated: 2026-06-01
- User reviews in markdown: https://appshunter.io/ios/app/co-ar/id1296287523/reviews.md

## What is CO₂ AR?

When burning coal, oil and gas, carbon dioxide—also known as CO₂—is released into the atmosphere. To date, CO₂ emissions have risen dramatically. In the short industrial history of just 250 years, humans have increased the amount of CO₂ in the atmosphere by around 40 %. An alarming value unprecedented on Earth in the past four million years. Humankind has accumulated CO₂ and other greenhouse gases in the atmosphere which has already increased average global temperature by one degree Celsius since 1750.

Our app allows you to visualise the history of CO₂ emissions—and also the possible futures. By combining data from the Carbon Dioxide Information Analysis Center (CDIAC) and the baseline projections of CO₂ emissions by the Potsdam Institute for Climate Impact Research (PIK), we were able to visualize the CO₂ emissions from 1751 to 2100 on a highly detailed geographical level. The app also provides you with two possible CO₂ futures: one with a policy of measures against climate change—and one without.


## Version history (last 2 releases)

### 1.1.1 — 2019-02-20

Updated app description.

### 1.1 — 2019-02-19

No release notes.

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## More apps by Ekkehard Petzold

- [Sudoku Club](https://appshunter.io/ios/app/sudoku-club/id1550846214)

All apps by Ekkehard Petzold: https://appshunter.io/developer/1156102927

## Related topics

[ekkehard petzold](https://appshunter.io/ios/topics/ekkehard-petzold) · [carbon emissions](https://appshunter.io/ios/topics/carbon-emissions) · [carbon performance](https://appshunter.io/ios/topics/carbon-performance) · [co2 snapshot](https://appshunter.io/ios/topics/co2-snapshot)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-06-01.*