Global warming fingerprint
	Heat waves and periods of unusually warm weather

Edmonton, Canada

Warmest summer on record, 1998. Temperatures were more than 5.4^oF (3^oC) higher than the 116-year average.

Reference: GISS. 1998. Goddard Institute of Space Studies. http://www.giss.nasa.gov/
data/ update/csci
NCDC. 1998. National Climatic Data Center. http://www.ncdc.noaa.gov/ol/
climate/climatedata.html

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