The core activity of Green AG is the global environmental assessment, remediation and rehabilitation of contaminated sites, including the removal of radioactive waste, legacy sites, military bases, airports, refineries, sawmills and accident sites. This also includes the cleaning of water bodies and the restoration of land and beaches to their original state. The company uses its own patented high-temperature gasification process, which operates at over 1300 degrees Celsius without oxygen and produces no emissions, but only synthesis gas, which is used for power generation in gas turbines.