ClimateWire: Next year, when two nuclear reactors near Syracuse, N.Y., are shut down for normal refueling operations, technicians will enter their cavernous containment structures looking for signs of aging in the thick steel walls surrounding shrouds of concrete. Constellation Energy Nuclear Group, which runs the Ginna and Nine Mile Point 1 reactors, volunteered for the inspections at the Department of Energy’s request. It is a new phase in a government and industry investigation into the …