The problem we now face is that this thin layer of atmosphere is being thickened by huge quantities of human-caused carbon dioxide and other greenhouse gases. And as it thickens, it traps a lot of the infrared radiation that would otherwise escape the atmosphere and continue out to the universe.
—from An Inconvenient Truth, a book by Al Gore
 Active since August 7, 2008.
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| Universe | Races | Average WPM | First Race | 
|---|---|---|---|
| Default (English) | 12,582 | 42.16 | August 7, 2008 | 
| Instant Death Mode | 35 | 69.34 | May 10, 2010 | 
| Riverside Middle School | 7 | 34.57 | January 26, 2011 | 
| Smoke Rise Prep | 2 | 49.63 | January 2, 2024 | 
| Mrs. Wunschel's TypeRacer Universe | 2 | 51.67 | August 29, 2012 | 
| ##typeracer | 1 | 49.08 | July 12, 2023 | 
| TypeRacer for Kids | 1 | 130.05 | December 13, 2017 |