A new report by the Carbon War Room titled “Machine to Machine Technologies: Unlocking the Potential of a $1 Trillion Industry,” was released on February 25. According to the report, the Machine to Machine industry (M2M), already estimated to be $121 billion, is expected to be worth $1 trillion by 2020. M2M technologies, which include sensors, wireless networks, and IT infrastructure, allow physical infrastructure and devices to connect to each other and exchange information. According to the report, smart meters and other energy efficiency devices have the potential to save 9 billion metric tons of greenhouse gas emissions annually by 2020.