Video from 1.10.2021; Duration: 10:17 min.

Explained in just under 10 min. The video is from April 2019 and shows two larger aquaponics facilities in Berlin.

Around 60 percent of the resources used in Berlin are processed in the construction industry. This contrasts with millions of tonnes of building rubble and construction site waste. Every year, 2.2 million tons of primary raw materials are already saved in civil engineering and building construction in Berlin through the use of quality-assured secondary raw materials. But Berlin does not intend to stop there. By 2030, a further 1.4 million tonnes of primary materials are to be replaced by secondary raw materials each year.

"The building sector is responsible for around one third of all CO₂-emissions in Germany. To achieve a climate-neutral building stock by 2050, the energy refurbishment of existing buildings alone is not enough," explains Michael Zahn, CEO of Deutsche Wohnen SE. "We also need to exploit the technological possibilities for CO₂-Reduction to the fullest and open up the opportunity for our tenants to live sustainably."