Karl Rabe is a sustainable IT Infrastructure Expert that focuses his efforts on reducing GHG CO2 emissions in all 3 Scopes. Through his company WoodenDataCenter he offers consultancy and Design services, wooden Server Racks and wooden modular Data Centers. His Key Innovation and Product designs are Open-Source Servers, Open-source Data Centers and Heat reuse Hydroponics Agritech Solutions. The use of CLT timber in his designs and the integration of circular economy practices in IT are the biggest CO2 reduction levers in his products. On Average over 80 % CO2 is reduced through WDC approaches.