Hansjörg Lerchenmüller is a serial start-up entrepreneur, manager and business angel who has co-founded several start-ups in the field of renewable energies, emission reduction and climate protection.Hansjörg has a technical background as a physicist. After 10 years with the Fraunhofer-Institute for Solar Energy Systems, he became founder and CEO of a company for highly efficient photovoltaic modules and his company set up production facilities in Germany (Freiburg) in and in the US (San Diego). For his solar activities he was awarded the prestigious German Environmental Prize.Since 2017 he has been focusing on biochar and negative emissions. He is co-initiator and chairman of the European Biochar Industry Consortium (EBI). He is also investor and chairman of the supervisory board of Carbuna AG (a German based manufacturer of biochar-based products) and he is co-founder and investor in the leading MRV provider Carbonfuture GmbH.