PhysOrg: In a recent study undertaken in Kelowna-area apple orchards and vineyards, UBC researchers discovered that using mulch in agriculture can cut nitrous oxide emissions up to 28 per cent. "In addition to saving water, improving soil, combatting pests and stopping weeds, wood mulch actually reduces the release of a greenhouse gas 300 times more potent than carbon dioxide," says Craig Nichol, senior instructor of Earth and Environmental Sciences at UBC's Okanagan campus. "Provided you are not driving...