3M said it expects to invest approximately $1 billion over the next 20 years to accelerate new environmental goals: Achieve carbon neutrality by 2050, reduce water use by 25% at its facilities, and return higher-quality water to the environment after use in manufacturing operations.   “As we grow 3M, we will lead in environmental stewardship, social equity and justice, and corporate governance,” 3M Chairman and CEO Mike Roman said. “We are taking action now to bend the curv...