Radiative Heat Transfer by CO2 or “what’s the quality of your radiation?”

Note: This is a contentious subject, and I have often shied away from it because it often erupts in food fights. However, Mr. Gill is making a good-faith effort here,…

What crisis? Global CO2 emissions stalled for the third year in a row

From the EUROPEAN COMMISSION JOINT RESEARCH CENTRE The annual assessment of global greenhouse gas (GHG) emissions by the JRC and the Netherlands Environmental Assessment Agency (PBL) confirms that CO2 emissions have…

University of Chicago Air Quality-Life Index

By Andy May The University of Chicago Energy Policy Institute has come up with a new measure of air pollution they call the Air Quality-Life Index or AQLI. It uses…

Examining the Carbon Dioxide Cycle

Guest essay by Ronald R. Cooke Introduction In high school and college I did reasonably well in the physical sciences: chemistry, physics and geology. From these studies one can learn…

Two Competing Narratives on Carbon Dioxide

Is carbon dioxide our friend or our foe? Guest essay by Iain Aitken Here is a dossier of key facts about carbon dioxide (and its role in global warming): ·…

Surprising: NASA's Global visualization in 3D of Carbon Dioxide in Earth's Atmosphere

From NASA Goddard via the OCO-2 Satellite Carbon dioxide is the most important greenhouse gas released to the atmosphere through human activities. It is also influenced by natural exchange with…

Questions on the rate of global carbon dioxide increase

Guest essay by Robert Balic A summary of a problem with estimates of the average concentration of carbon dioxide in the atmosphere and questioning of how it is possible that…

Dueling press releases: Plants have been helping to offset climate change, but now it’s up to us

Our previous story, Study suggests increased atmospheric CO2 creates a 30% growth in plant photosynthesis during last two centuries look almost entirely different than this press release from the CARNEGIE INSTITUTION FOR…

Study suggests increased atmospheric CO2 created a 30% growth in plant photosynthesis during last two centuries

From the UNIVERSITY OF CALIFORNIA – MERCED and the “CO2 is plant food, but, it’s still terrible department” (see text) Research shows global photosynthesis on the rise Plant photosynthesis was…

Effect of Atmospheric CO2 Concentrations on Early Human Societies

Guest essay by Don Healy During the past 100,000 years, human societies have witnessed the vast change in climate that has occurred as we have transitioned from a glacial period…