A University of Iowa researcher came up with a simple metal plate that may reduce harmful emissions from burning wood. Engineering professor H.S. Udaykumar, in a paper published in the November issue of Solutions, reported that his research in India found that a simple metal plate would allow residents to collect less wood from nearby forest, and cut back on harmful emissions of black carbon, which contributes to climate change. The wood harvesting had been harming the forest, he reported. He tried to get residents to buy metal cooking stoves, but the $30 price tag was a problem. The metal grate insert costs a dollar. Read UI’s news release on the study.