28
November 2002
Climate change: Peak viewing
An ice core from Mount Logan, Canada's highest mountain, has provided a record of high-altitude climate change in the north Pacific region from the end of the Little Ice Age to the warmest decade in the past millennium. The data cover the years 1736–2000, and reveal no discernible trend for the first 150 years, then a significant increase in snow accumulation. There is a striking correspondence to the warming trend over northwestern North America and to two dominant patterns of climate variability, the Pacific North America pattern and the Pacific Decadal Oscillation.
Climate change in the North Pacific region over the
past three centuries
G. W. K. MOORE, GERALD HOLDSWORTH
& KEITH ALVERSON
Nature 420, 401–403 (2002); doi:10.1038/nature01229
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