Carbon Collect MechanicalTree™ (IMAGE) Arizona State University Caption Carbon Collect’s MechanicalTree™ is up to a thousand times more efficient at removing CO2 from the air than a natural tree. Incorporating research and innovations by Arizona State University engineering professor Klaus Lackner, and following a concentrated two-year design and engineering program, the first commercial scale MechanicalTree™ was unveiled this week by Carbon Collect on Arizona State University’s Tempe campus. Credit Photo courtesy Carbon Collect Usage Restrictions Use with credit in all instances License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.