. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. CLIMATE TRENDS IN ILLINOIS O U) (0 Q) > Q) Q I w CO Q 0) 0) D) Q) Q. -700 1901 111 111 111 III1II I iI 1111II 1111111II 111 i 111111111 i 11111111111111111111111 M 111111111 1911 1921 1931 1941 1951 1961 1971 1981 Year 1991 Figure 26. Five-year running averages of statewide mean cooling degree-days for Illinois, presented as deviations from period mean, 1901-1991. 37. Please note that these image


. The changing Illinois environment : critical trends : technical report of the Critical Trends Assessment Project. Man; Pollution; Environmental protection; Ecology; Environmental impact analysis. CLIMATE TRENDS IN ILLINOIS O U) (0 Q) > Q) Q I w CO Q 0) 0) D) Q) Q. -700 1901 111 111 111 III1II I iI 1111II 1111111II 111 i 111111111 i 11111111111111111111111 M 111111111 1911 1921 1931 1941 1951 1961 1971 1981 Year 1991 Figure 26. Five-year running averages of statewide mean cooling degree-days for Illinois, presented as deviations from period mean, 1901-1991. 37. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Illinois. Dept. of Energy and Natural Resources; Critical Trends Assessment Project. Springfield, Ill. : Ill. Dept. of Energy and Natural Resources


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