Today: 21.May.2018

Don Bogard, isotopic and nuclear geochemistry: Today, when many are concerned about the Earth possibly over-heating through greenhouse warming, it is worthwhile to look into the not very distant past when the Earth over-cooled. Most people have heard of the Ice Age but probably know very little about it. Some may remember climate scientists in the 1970s expressing concern that Earth may be entering a new ice age, because of growing evidence that Earth was cooling (in spite of growing atmospheric carbon dioxide of CO2). What was the ice age, why did it occur, and is it now in our past, or also in our future?

Don Bogard, isotopic and nuclear geochemistry: Professional summary with NASA and research about climate change in retirement.

Published in United States

Don Bogard, research scientist and member of The Right Climate Stuff, TRCS, team, website: http://www.therightclimatestuff.com/. This is a description of movement of man-made carbon dioxide between major carbon, C, reservoirs: atmosphere, plants, soil, surface ocean, etc. The fraction of human C in the air today, to a first order, reflects the total size of C reservoirs with which all human C over time has been mixed. The fraction of human C present in today's atmosphere says little about the total amount of human C added UNLESS one considers the total C inventory of all C reservoirs (atmosphere, plants, soil, surface ocean, etc.) that experience C exchange.

Don Bogard, research scientist and member of The Right Climate Stuff, TRCS, team, website: http://www.therightclimatestuff.com/. This is a clearly written discussion of atmospheric sources and sinks of carbon dioxide. It explains the contributions of CO2 by activities of mankind (cement, land use, fossil fuels).

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