Recently one of the big issues du jour has been Marcott et al. 2013:
Science 8 March 2013 ~ Vol. 339 no. 6124 pp. 1198-1201 ~ DOI: 10.1126/science.1228026
A Reconstruction of Regional and Global Temperature for the Past 11,300 YearsShaun A. Marcott, Jeremy D. Shakun, Peter U. Clark, Alan C. Mix