The wide-spread application of available clean and innovative waste management technologies (e.g. digitalization, membrane technology, artificial intelligence, nanotechnology, plasma technology and modern material technology) as well as establishing and operating environmental management systems is a significant progress. These solutions can expand and make waste management options more efficient in the case of waste recovery, disposal and prevention. Agriculture and forestry must also play a serious role in tackling climate challenges. There are available innovative wastewater treatment solutions for recycling nutrients into the natural cycle as well as for the disposal of sewage sludge on agricultural lands and energy utilization. Exploiting and further improving these technologies are of key importance.