e-Letter Box

Sustainability: Science, Practice, & Policy will accept brief and sharply focused responses to the editorial and articles. e-Letters are a moderated forum: all responses are read, edited if necessary, and approved by the editorial staff before they are posted.

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Comprehensive conservation planning and sustainability within the National Wildlife Refuge system
Richard L. Schroeder
U.S. Geological Survey, USA

Challenges for sustainability in cultures where regard for the future may not be present
M. James C. Crabbe
Luton Institute of Research in the Applied Natural Sciences, University of Bedfordshire, UK

Sustainability science – and what’s needed beyond science
Paul H. Reitan
Department of Geology, University of Buffalo, USA