| CO2 emissions of light-duty vehicles in the United States |
≈ 0.21 kg CO2 / km |
21001 |
United States Environmental Protection Agency |
|
| CO2 emissions from land-use change |
(5.5 ± 2.6) × 1012 kg CO2 / yr |
24789 |
Friedlingstein, P., Jones, M. W., … |
|
| Pre-industrial atmospheric CO2 concentration |
≈ 280 parts per million |
30912 |
MacFarling Meure, C., D. Etheridge, … |
|
| Growth in terrestrial gross primary production during the 20th century |
31 ± 5 % |
44893 |
Campbell, J.E., Berry, J.A., Seibt, … |
|
| Net natural CO2 sink |
(2.2 ± 0.4) × 1013 kg CO2 / yr |
52670 |
Friedlingstein, P., Jones, M. W., … |
|
| CO2 emissions from fossil fuel combustion and industrial processes |
(3.66 ± 0.18) × 1013 kg CO2 / yr |
54608 |
Friedlingstein, P., Jones, M. W., … |
|
| Total anthropogenic CO2 emissions |
(4.22 ± 0.33) × 1013 kg CO2 / yr |
60670 |
Friedlingstein, P., Jones, M. W., … |
|
| Ratio between anthropogenic emissions and natural removal of CO2 |
1.88 ± 0.46 |
70632 |
Friedlingstein, P., Jones, M. W., … |
|
| Net land CO2 sink |
(1.28 ± 0.26) × 1013 kg CO2 / yr |
74574 |
Friedlingstein, P., Jones, M. W., … |
|
| Atmospheric CO2 concentration |
≈ 420 parts per million |
81043 |
Scripps CO2 Program |
|
| Atmospheric CO2 growth rate |
(1.9 ± 0.1) × 1013 kg CO2 / yr |
98043 |
Friedlingstein, P., Jones, M. W., … |
|
