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Mark Brady. Foto.

Mark Brady

Utredare

Mark Brady. Foto.

Nitrogen in the Baltic Sea - Policy implications of stock effects

Författare

  • Rob Hart
  • Mark Brady

Summary, in English

We develop an optimal control model for cost-effective management of pollution, including two state variables, pollution stock and ecosystem quality. We apply it to Baltic Sea pollution by nitrogen leachates from agriculture. We present a sophisticated, non-linear model of leaching abatement costs, and a simple model of nitrogen stocks. We find that significant abatement is achievable at reasonable cost, despite the countervailing effects of existing agricultural policies such as price supports. Successful abatement should lead to lower nitrogen stocks in the sea in 5 years or less. However, the rate of ecosystem recovery is less certain. The results are highly dependent on the rate of self-cleaning of the Baltic Sea, and less so on the discount rate. Choice of target has a radical effect on the abatement path chosen. Cost-effectiveness demands such a choice, and should therefore be used with care when stock effects are present.

Publiceringsår

2002-09

Språk

Engelska

Sidor

91-103

Publikation/Tidskrift/Serie

Journal of Environmental Management

Volym

66

Issue

1

Dokumenttyp

Artikel i tidskrift

Förlag

Elsevier

Ämne

  • Economics
  • Environmental Sciences

Nyckelord

  • Agricultural nitrogen
  • Baltic Sea
  • Dynamic optimization
  • Ecosystem quality
  • Pollution
  • Stock pollutants

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 0301-4797