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. As a result, the temperature of the Earth's atmosphere and oceans is getting dangerously warmer.
| Game | Time | WPM | Accuracy |
|---|---|---|---|
| 439 | 2011-05-13 13:13:40 | 83.71 | 93% |