Blackstone-backed ESG performance and risk management software, data and services provider Sphera announced today the acquisition of supply chain sustainability software company SupplyShift, in a move aimed at enhancing its supply chain offering with expanded supplier mapping, scoring and traceability capabilities. Founded in 2012 by Climate Science and Environmental Economics PhDs Alex Gershenson and Jamie Barsimantov, Santa Cruz, California-based SupplyShift…