2015 State of the Climate: Carbon Dioxide
Trends in global CO2 emissions: 2015 report PBL Netherlands Environmental Assessment Agency
EIA projects that U.S. energy-related CO2 emissions will fall through 2050 in AEO2023 - U.S. Energy Information Administration (EIA)
The State of the Planet in 10 Numbers
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Analysis: Which countries are historically responsible for climate change? - Carbon Brief
Energies, Free Full-Text
Extreme CO2 Levels Could Trigger Clouds 'tipping Point' And, 47% OFF
Public opinion on climate change - Wikipedia
ESRL Global Monitoring Laboratory - Mauna Loa Observatory
Global Monitoring Laboratory - Carbon Cycle Greenhouse Gases
ESRL Global Monitoring Laboratory - Mauna Loa Observatory
Does the air become noticeably fresher in the spring/summer when the leaves bloom since they make oxygen? - Quora