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	Dave has spent time overseas in Tanzania, Costa Rica, Belize and New Zealand. He has been teaching ecology, botany and research courses at Calvin for 16 years while doing research with students in the areas of conservation, restoration and plant evolution. Recently he has been involved in a community initiative in Grand Rapids to help churches become involved in improving the health of an urban stream, work that has included reintroducing native habitats into urban and industrial areas. Dave has taught several classes at Au Sable and loves the opportunity Au Sable courses afford to facilitate experiential learning while developing a nurturing, mutually encouraging community of Christians dedicated to tending God&#39;s world.</p>
