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This paper describes the impact of possible climatic change resulting from increased CO2 warming on estimated dry matter yields for spring wheat crops in Saskatchewan, Canada. Data generated by the GCM modeling experiments at the Goddard Institute for Space Studies (GISS) for a doubling of atmospheric CO2 concentration is compared to the 1951-80 climate normals. Climate change projected by the GISS model would increase the annual temperature and precipitation in Saskatchewan by an average 4.7°C and 15%, respectively; the growing season length would be increased by an average of 48 days, advancing the growing season by about 2-3 weeks and …
