Modesto Bee: About 20,000 acres of Tuolumne County timber are part of an effort to capture some of the carbon dioxide believed to be changing the climate. Sierra Pacific Industries, a major lumber producer, announced last week that it will manage the land in a way that increases carbon stored in trees over the next 100 years. The goal is to keep the gas from wafting into the atmosphere, where it could trap the sun’s heat and warm the planet. The people involved said it is the largest …