Ozone Hole Watch Screensaver
The Ozone Hole Watch screensaver shows the real Antarctic ozone hole's peak size and minimum ozone level, tracked year by year from NASA's own published satellite data. It is free, runs in your browser, and ESC exits.
How the Ozone Hole Watch screensaver works
The saver reads NASA's own real published annual record of the Antarctic ozone hole's peak area and minimum ozone level.
A real historical trend line plots the hole's size across every year since satellite monitoring began in 1979.
The pipeline refreshes the record on the source's own real annual schedule.
No key is required for the published NASA data.
A worked example
The real, well-documented shrinking trend in peak ozone hole size since the 2000s, following the Montreal Protocol, is visible directly in the historical line.
Settings & tips
- Accent recolours the trend line.
- Figures are real satellite measurements, not modeled projections.
- The record updates once each real Antarctic spring season.
Frequently asked questions
- Is this real satellite data?
- Yes — NASA's own real published Antarctic ozone hole record since 1979.
- Is a key needed?
- No. NASA publishes the record freely.
- Is the ozone hole shrinking?
- The real long-term data shows recovery since the Montreal Protocol phased out ozone-depleting chemicals.
- Is it free?
- Yes — free, no download, in your browser.