Environmental Engineering Reference
In-Depth Information
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Part III What Is the Present State of Knowledge?
The chapters in this section provide a summary of what we have learned from the Arctic
Messenger about ongoing changes in the state of the Arctic environment and of the signi-
ficance of such changes not only to the Arctic itself but also to the global ecosystem. The
choiceofthemesispersonalandnotallarecoveredwiththesamedegreeofdetail. Themain
criterion I used to select a theme is the notion of an anthropogenic (human) activity causing
an adverse environmental impact at a far-distant location. Consequently, I have not included
such possible themes as chronic and acute oil spills. This is not a statement about the envir-
onmental damages that can be caused by such incidents but is a recognition that such spills
do not generally result in circumpolar, hemispheric or global effects.
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