Virginian-Pilot: Oceans are becoming more acidic, which poses another threat in Virginia to oysters, clams and crabs as well as to water quality and coastal ecosystems, a panel of scientists and environmentalists warned Wednesday. The experts, including researchers from Old Dominion University and the Virginia Institute of Marine Science, spoke after a special screening of the documentary film “Acid Test” at the Naro Expanded Cinema in Norfolk. More than 100 attended the free event, intended to …