AAAS - The American Association for the Advancement of Science - Hans Rosling illustrates expected population growth using toilet paper rolls. Rosling is a professor of international health at the Karolinska Institute
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Demand carbon dioxide data” says Hans Rosling to open data advocates at OKFestival – Open Knowledge Foundation blog
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Demand carbon dioxide data” says Hans Rosling to open data advocates at OKFestival – Open Knowledge Foundation blog
![Demand carbon dioxide data” says Hans Rosling to open data advocates at OKFestival – Open Knowledge Foundation blog Demand carbon dioxide data” says Hans Rosling to open data advocates at OKFestival – Open Knowledge Foundation blog](https://farm9.staticflickr.com/8437/8008727524_0438f49f9f.jpg)