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 particulate pollution concentrations to compute an index that correlates well with expected life expectancy. Particulate concentrations <10 μm (PM10) and <2.5 μm (P2.5) are utilized…

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 that carbon (C) is an element, is widely available throughout our universe, is chemically active (which means many inorganic and organic compounds include carbon), is…

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): · It is an incombustible, colourless, odourless, tasteless and non-toxic gas · It is a plant nutrient and, as the ‘fuel’ of photosynthesis and the creation…

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 the land and ocean. This visualization provides a high-resolution, three-dimensional view of global atmospheric carbon dioxide concentrations from September 1, 2014 to August 31, 2015.…