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Investigates the biofiltration techniques for air pollution researched by an engineering professor Grant Allen of the University of Toronto's Pulp and Paper Center in Toronto, Ontario. Degradation of the pollutants and compounds emitting smell; Materials composed the filter; Application of the technology.

The author argues that the cap-and-trade carbon emissions limiting system developed in European Union countries and implemented in California in 2012 could fail in Canada, based on political interference and government subsidies to industries that consume large amounts of energy. International cooperation on carbon emissions trading and energy policies in Germany, Great Britain, and Russia are discussed.