| Keeling Jr.'s CO2 measuring device seems broken21-03-2016 18:48 | |
| Tai Hai Chen★★★★☆ (1085) |
405.21 ppm this year compared to 399.95 ppm this time last year. Seriously? https://www.co2.earth/daily-co2?how-co2-is-measured_html= Edited on 21-03-2016 18:49 |
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