Sentences with phrase «acceptable temperature proxies»

It is possible that tree rings in some form were previously acceptable temperature proxies and now are less so.

So please take «absolutely» as my shorthand for «overwhelming evidence at this point that post-1720 Lighsum is invalid as a proxy for temperature, with no plausible rationale on offer that post-1720 Lightsum might be an acceptable temperature proxy (although new theories and evidence might change this picture).»