United States and Canada

In the first documented incidence of transborder air pollution between the United States and Canada, the U.S. was on the receiving end. Current trends, however, now show that about one half of all acid deposition in Canada comes from the United States. This gives Canada the highest proportion of acid deposition from another country of any country in the world [11]. This has caused a decline in forest productivity in Eastern Canada due to the pollution imported from U.S. Midwest industrial firms [12]. Additionally, as of 1994, thousands of Canadian lakes are fishless due to acidification, and thousands more are in danger of losing their fish stocks. It should be noted, however, that between 1975 and 1990, partly due to the success of the U.S. Clean Air Act, sulfur dioxide emissions in the United States decreased by 30% [13].

In return, Canada is responsible for only 20% of the United States' acid deposition. The Eastern U.S. forests are experiencing the second worst decline due to acid deposition. Although Canadian air pollution contributes to this decline, the majority of the loss of productivity is due to domestic industrial air pollution from the same industrial processes that are polluting Canadian forests.

Negotiating Essentials

Negotiating Essentials

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