MERRILLVILLE, Ind.–(BUSINESS WIRE)–NiSource Inc. (NYSE: NI) today released its 2025 Sustainability Report, Energizing a Sustainable Future, outlining achievements that help shape a safer, more resilient energy environment for the customers and communities we serve. In 2025, NiSource continued to connect day-to-day operations with long-term sustainability goals to drive value for customers and shareholders. Among the key achievements, we reduced environmental impacts across our operating footp