Errata # 2
In a light water experiment, where there is at least five atom of 18O "available" per every atom of 16O ...
That should read: "In a light water experiment using desalted seawater, there are 5 atoms of 18-O per 1000 atoms of 16-O"
IOW the natural ratio of the 18O istope in seawater is .5% of 5 per 1000. The ratio can be much higher in "fossil ice".
