Mar 05, 2007 — This winter, Cornell Cooperative Extension of St. Lawrence County has been holding seminars on using wood or grass pellets to heat homes, farms, and businesses. They've been a hit. Almost 200 people packed a pelletizing workshop in Madrid last month. Extension's Pete Barney says concerns about global warming and reliance on foreign oil are adding up. Barney told David Sommerstein the problem is supply lags behind the demand.