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 |
|---|---|---|---|
| 13649 | 2012-08-05 13:27:21 | 69.59 | 93% |
| 13531 | 2012-05-06 13:28:03 | 74.68 | 91% |
| 13327 | 2012-04-14 09:11:25 | 76.39 | 95% |
| 13217 | 2011-09-02 11:21:39 | 82.42 | 94% |
| 11655 | 2011-07-22 06:25:04 | 74.27 | 92% |
| 11261 | 2011-07-18 06:27:05 | 74.98 | 93% |
| 11114 | 2011-07-15 05:45:32 | 79.77 | 91% |
| 10991 | 2011-07-12 11:59:30 | 75.73 | 93% |
| 10536 | 2011-07-01 10:52:44 | 73.42 | 90% |
| 10215 | 2011-06-27 12:19:21 | 77.69 | 93% |
| 10172 | 2011-06-24 12:15:02 | 78.70 | 92% |
| 9642 | 2011-06-13 08:45:04 | 78.82 | 94% |
| 9530 | 2011-06-09 09:12:35 | 79.58 | 94% |
| 9507 | 2011-06-08 12:02:33 | 69.00 | 89% |
| 9117 | 2011-04-27 09:48:35 | 69.68 | |
| 8192 | 2011-04-14 12:33:32 | 63.72 | |
| 7413 | 2011-03-29 07:19:16 | 66.08 | |
| 7340 | 2011-03-28 14:19:57 | 66.83 | |
| 6910 | 2011-03-21 12:11:10 | 72.52 | |
| 6703 | 2011-03-14 14:07:21 | 66.48 | |
| 6681 | 2011-03-14 13:09:05 | 67.02 | |
| 6571 | 2011-03-14 07:09:25 | 76.21 | |
| 6128 | 2011-03-07 11:10:53 | 77.19 | |
| 5615 | 2011-03-01 08:58:02 | 68.77 | |
| 5500 | 2011-02-23 13:01:16 | 70.42 | |
| 5322 | 2011-02-15 11:13:54 | 63.21 | |
| 5097 | 2011-02-13 04:31:01 | 63.43 | |
| 4851 | 2011-02-11 05:12:50 | 67.06 | |
| 4743 | 2011-02-06 04:28:37 | 68.01 | |
| 794 | 2010-10-25 10:23:12 | 61.59 | |
| 661 | 2010-10-22 08:42:45 | 62.96 | |
| 585 | 2010-10-21 09:59:01 | 62.95 | |
| 263 | 2010-10-15 08:32:18 | 60.32 | |
| 218 | 2010-10-14 05:30:43 | 60.33 |