"Another Hockey Stick Illusion??!!??"
1300-Year History of Atmosheric CO2
reconstructed:
- using the density of plant stomata as a proxy measurement,
- by direct analysis of air in ice cores from Antarctica (Law Dome),
- and analysis of Central Pacific air (since 1958 from 3km up Mauna Loa volcano, Hawaii)
“The greatest enemy of knowledge is not ignorance, it is the illusion of knowledge .. the world has suffered far less from ignorance than from pretensions to knowledge. It is not skeptics or explorers but fanatics and ideologues who menace decency and progress.”
by American historian Daniel Joseph Boorstin
(http://www.goodreads.com/author/quotes/10378.Daniel_J_Boorstin)
This work-in-progress investigates the validity of attempts by scientists to reconstruct past atmospheric CO2 concentrations using air recovered from ice sheets and glaciers. This air is considered by some to remain virtually unchanged for the decades, centuries and millennia that it is enclosed within pores that form in the ice as it is compressed. Geologist Professor Richard Alley has gone as far as referring to the ice-core record as the "Gold Standard" for determining past atmospheric CO2 content - but is it?.