1998: Warmest year of a past millennium

An analysis of temperature indicators including tree rings and glacial ice concludes that the current millennium is ending with the highest temperatures of the entire period.

References:

Mann, M.E., R.S. Bradley, and M.K. Hughes. 1999. Northern hemisphere temperatures during the past millennium: Inferences, uncertainties, and limitations. Geophysical Research Letters 26(March 15):759.

Further Readings:

Monastersky, R. 1999. Earth's temperature shot skyward in 1998. Science News 155(Jan. 2):6.

______. 1998. Recent years are warmest since 1400. Science News 153(May 9):303.

Sources:

Gordon Jacoby
Lamont-Doherty Earth Observatory
P.O. Box 1000
Route 9W
Palisades, NY 10964

Michael E. Mann
University of Massachusetts at Amherst
200 Munson Hall
Amherst, MA 01003

From Science News, Vol. 155, No. 12, March 20, 1999, p. 191. Copyright © 1999, Science Service.

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