Where theres smoke, there are sprites
Smoke from massive forest fires in Mexico this spring altered the polarity of lightning thousands of miles away over the central United States.
Lyons, W.A., et al. 1998. Enhanced positive cloud-to-ground lightning in thunderstorms ingesting smoke from fires. Science 282(Oct. 2):77.
Information on the Mexican fires is available at NASA's Web site at http://modarch.gsfc.nasa.gov/fire_atlas/fires.html.
Don J. Latham
U.S. Department of Agriculture Forest Service
Intermountain Fire Sciences Laboratory
P.O. Box 8089
Missoula, MT 59807
Walter A. Lyons
FMA Research, Inc.
Yucca Ridge Field Station
Fort Collins, CO 80524
Charles B. Moore
New Mexico Institute of Mining and Technology
P.O. Box 1333
Socorro, NM 87801-1333
From Science News, Vol. 154, No. 14, October 3, 1998,
Copyright Ó 1998 by Science Service.
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