00000nam 2200000zi 4500 9.958140 CaOODSP 20251210142842 m o d f cr bn||||||||| 251210s1979 oncd o f000 0 eng d CaOODSP eng rda CaOODSP n-cn-on En58-27/4-79E-PDF Aston, D., author. Toronto temperature trend, 1780-1978 / by D. Aston. [Downsview, Ontario] : [Atmospheric Environment Service], 1979. 1 online resource (2 unnumbered pages) : chart. text txt rdacontent computer c rdamedia online resource cr rdacarrier CDS ; #4-79 Digitized edition from print [produced by Environment and Climate Change Canada]. "29/8/79." "Very often climatologists are asked, "Are We Heading Into Another Ice Age". Depending on the person asked, there are numerous answers to this question and many theories as to why we are or are not on the verge of an Ice Age. One of the major problems in solving this mystery is the short length of temperature records for any one location in the world. In Canada the longest period of continuous temperature records are those for Toronto, Ontario. This record covers the period 1840 to the present"--Page [1]. Atmospheric temperature Ontario Toronto. Température atmosphérique Ontario Toronto. Toronto (Ont.) Climate. Toronto (Ont.) Climat. Canada. Atmospheric Environment Service, issuing body. CDS ; no. 4-79. (CaOODSP)9.932874 PDF 198 KB https://publications.gc.ca/collections/collection_2025/eccc/en58/En58-27-4-79-eng.pdf