AlterEcho is an experienced sustainability consulting firm that provides strategic guidance to help organizations reduce environmental impacts, lower costs, and improve public image. A McKinsey report found that the US could reduce energy usage by 23% by 2020 through efficiency improvements, avoiding $1.2 trillion in wasted energy and $520 billion in needed investments. For cities and utilities, opportunities exist in energy efficiency programs, smart grids, and replacing outdated infrastructure, as well as investing in renewables, biogas, and adaptation initiatives to reduce greenhouse gas emissions.