Ladas wrote:
Lydiaa wrote:
I'd have thought that it would be necessary to keep the tree stumps around (or at least a photo of it) especially in such a contrivertial document.
When they say cores, they do not necessarily mean tree stumps, though for some historical data, that is used as well. What it generally means is that take a core sample of the tree in a similiar manner to taking cores from ice. At least, in helping my dad with some of his research, that is the approach he used.
However, I don't believe the data they are using all comes from living trees, but sub fossil trees. There are very few trees with a lifespan of several thousand years, and even if you had a sufficient number of those, their growth rings would be a poor sample.
But according to the article, they have the data they used to generate their report. They just elected to never provide that data for review, nor did the publications to which they submitted actively pursue the data for disclosure as they state they require. That is until very recently.
Oh hehe, I do get that. I was talking more along the lines of a cross section (in living tree), and a photo in fossil trees.
Sorta like when you're staining tissues, to discard the slide without taking pictures and just claim you saw something.
As discussed in your link, due to the complexity of these rings. A second opinion on even the selected samples would be ideal. Peer review is a must for any publication to hold water, and due to their unwillingness to disclose their back ground data, I do believe the initial paper could be temporarily discounted until such information becomes available.