Discussion of: A statistical analysis of multiple temperature proxies: Are reconstructions of surface temperatures over the last 1000 years reliable?

TL;DR

This paper discusses the reliability of surface temperature reconstructions over the past millennium based on multiple proxies, critically analyzing the statistical methods used in prior studies.

Contribution

It provides a critical discussion on the statistical approaches and reliability of temperature reconstructions over the last 1000 years.

Findings

Highlights limitations of current proxy-based reconstructions

Emphasizes need for improved statistical methods

Questions the certainty of past temperature estimates

Abstract

Discussion of "A statistical analysis of multiple temperature proxies: Are reconstructions of surface temperatures over the last 1000 years reliable?" by B.B. McShane and A.J. Wyner [arXiv:1104.4002]