2k data proving valuable

Letter: A model-tested North Atlantic Oscillation reconstruction for the past millennium
Pablo Ortega, Flavio Lehner, Didier Swingedouw, Valerie Masson-Delmotte, Christoph C. Raible, Mathieu Casado & Pascal Yiou
Nature | Vol 523 | pp: 71-74 | 2 July 2015
doi:10.1038/nature14518

Timing and climate forcing of volcanic eruptions for the past 2,500 years
M. Sigl,  M. Winstrup,  J. R. McConnell,  K. C. Welten,  G. Plunkett + et al.
Nature | Online |  20 pgs. | 08 July 2015
doi:10.1038/nature14565