Dublin-headquartered CO2 extraction firm Carbon Collect has been awarded $2.5 million in research funding by the US Department of Energy to complete three ‘carbon farms’ using its mechanical tree direct air capture technology (DAC) that aim to capture 1,000 tonnes of carbon dioxide a day at commercial scale. The award was one of six US projects awarded a total of $12 million in federal funding for R&D into DAC technology. Carbon Collect’s mechanical tree design was developed at, and spun out from Arizona State University by Prof Klaus Lackner, a German pioneer of carbon capture methods. Three former BP executives…