"The 2004 Canadian Acid Deposition Science Assessment has been prepared by researchers from the federal and provincial governments and academia. This assessment builds upon the results presented in the 1997 Canadian Acid Rain Assessment. The assessment consists of two documents, the Summary of Key Results and the Assessment. The Summary of Key Results synthesizes the major findings of the Assessment in the context of ten questions and subquestions put forth by the acid deposition policy and science communities. The Assessment presents a comprehensive review of acid deposition science in Canada."--Environment Canada Website.