Centre Daily: The rolling fields of corn and hay farmed by the Rosenbaum family in Union Township are indistinguishable from others in Berks County. Over this winter season, the fields have lain dormant, waiting for the thaw and spring planting to come. But this year, the Rosenbaums’ 150 acres will start earning money for a new reason: their ability to help the environment by absorbing a greenhouse gas. Eric Rosenbaum is the third generation of his family to work this land. He owns it with …