Finally, Canada has taken the opportunity to submit comments to the U. S. when they have made amendments to legislation to reduce air pollution where appropriate and when the comment period allowed the federal government the opportunity to convey the potential impact of any amendments to Canadian air quality and acid deposition. [...] Acid Deposition Science & Monitoring Assessing the role of nitrogen The federal government will maintain an active role in acid rain science and monitoring in cooperation with provincial and territorial governments, and federal/provincial/territorial governments will cooperate (while respecting the resources and capabilities of different governments) in assessing the role of nitrogen in acidificat [...] These projects have contributed to our understanding of the transport and fate of nitrogen in terrestrial ecosystems, the capacity of terrestrial ecosystems to utilize nitrogen and the role of forest harvesting in nitrogen dynamics. [...] Responses to the recommendations in the 1999 report on the adequacy of acid rain science programs in Canada With the goal of ensuring the capability to assess both the degree of environmental improvement achieved and the adequacy of the control programs, federal/provincial/territorial governments (each determining its own level of involvement) will review the adequacy of acid rain science and moni [...] The objective of the review was to ensure that there was an existing “capability to assess both the degree of environmental improvement achieved and the adequacy of the [emission] control programs”.