Agriculture is one of the leading causes of pollution in Virginia’s waterways. WMRA’s Kara Lofton has the first in our occasional series on “Clean Virginia,” with a tour of one farm aiming to protect the water that runs through it.... Jessie Knadler gets us up to date on the Natural Bridge Zoo, now reopened for business.... Kara also took us to the roller derby to meet Charlottesville's Derby Dames.... and we've got this week's installment of The Spark.