1998_Briffa_HockeyStick_NorthHOnly_Nature

Chart from Influence of volcanic eruptions on Northern Hemisphere summer temperature over the past 600 years K. R. Briffa et al, Nature 1998

Briffa gives a Northern Hemisphere proxy chart back to 1400 in letter to Nature on the influence of volcanic eruptions [Vol393, 4 JUNE 1998 on page 451]

Influence of volcanic eruptions on Northern Hemisphere summer temperature over the past 600 years K. R. Briffa, P. D. Jones, F. H. Schweingruber, T. J. Osborn NATURE |VOL 393 | 4 JUNE 1998 on page 451

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