Center for Environmental Systems Research
We are a university center within the Kassel Institute for Sustainability.
Last published
DIN SPEC 91525:2026-02 Anschlussnutzungskonzept für Bauprodukte aus Bestandsgebäuden [Post-Use Concept (PUC) for construction products from existing buildings]
Dieses Dokument stellt allgemeine Grundsätze für das Anschlussnutzungskonzept von Bauprodukten aus Bestandsgebäuden als Ergänzung zum Vorgehen nach VDI 6210 Blatt 1 auf. Im Fokus steht das Vorgehen für die Identifikation von technischen, ökologischen und ökonomischen Potenzialen für die…Declining demand and circular transition possibilities of sand, gravel and crushed stone in China
Aggregates (sand, gravel, crushed stone) make up half of all globally extracted materials and present substantial environmental challenges. China, which consumes half of the world’s aggregates, is undergoing profound shifts in both supply and demand. Our scenario-based model tracks aggregate flows…Six footprints to monitor the bioeconomy into a safe and just future
Environmental footprints should play a key role in monitoring the bioeconomy. They can capture environmental pressures and impacts of biomass production and extraction, as well as provide comparable per capita values disclosing how biomass use is distributed globally. As such, footprints could help…Best Practice for Right to Repair and Supply Chain Regulations: High-reparability Modular Smartphone Usage Model Mitigates Environmental Hotspots
Two-thirds of the global population own mobile phones or smartphones. Yet their short service life—often limited to just a few years—leads to frequent replacements, excessive raw material consumption, and rising electronic waste. This study evaluates the environmental benefits of a highly modular…The regional nature of circular bioeconomy: Comparing the availability of residual biomass at national, regional and city level
Circular bioeconomies aim to use biogenic resources efficiently, e.g. by utilizing residual biomass. The availability of residual biomass varies regionally and its utilization is regionally restricted. Accordingly, regions must handle different feedstock. Thus, knowledge on the availability of…