The World Renewable Energy Congress and Expo will be held in Denver from Aug. 28 to Sept. 3. Workshops will focus on a wide range of renewable energy sources, such as wind, solar, geothermal, fuel cells, wave energy, biomass and more.
303-275-3781
www.nrel.gov/wrec.

Oregon State University is sponsoring a class on timber and forestland appraisal, "The Basics of Accurate Forest Land Appraisal — Precisely!" in Corvallis on Oct. 4-8.
541-737-2329
http://outreach.cof.orst.edu/.

Check out a new Web site from the Backcountry Hunters and Anglers. The group advocates for wildlife and wilderness, from the perspective of hunters and fishermen. www.backcountryhunters.org.