Focus

Building materials

© plainpicture / Monty Rakusen

The construction sector is particularly material-intensive: in Germany, around 28 million tonnes of cement and 15 million tonnes of steel are required annually for the construction of new buildings, roads and other infrastructure such as bridges and railways. At the same time, mineral construction waste is one of Germany’s largest waste fractions. If the construction sector is to operate sustainably, it must make sparing use of resources and ensure high-quality recycling of as much of its waste fraction as possible in the interests of a circular economy. The anthropogenic material stock – the pool of raw materials created by human activity – is growing continuously and offers immense potential as a source of secondary raw materials. Urban mining, which involves the recycling and recovery of raw materials, is set to become a priority in the resource transition.

The Oeko-Institut conducts research on various topics relating to the sustainable production, use and recycling of building materials. It calculates and forecasts resource consumption, conducts analyses of material flows and recovery paths for metals and mineral resources, and generates scenarios for sustainable management of building materials.

News

Infographics

  • Infographic from Öko-Institut e.V. titled "What does socially just climate protection mean?" showing strategies for sustainable, socially acceptable climate protection. Central box labeled "Socially Just Climate Protection" connects to three approaches:  Income support (short-term):  Includes transfer payments, climate dividends, and energy payments.  Price adjustments (short-term):  Includes CO₂ levy, reduction of renewable energy levy, and modernization levy.  Reduction in energy consumption and emissions (long-term and lasting):  Split into two areas:  Energy efficiency / renewable energies: building renovation, heating system replacement, climate-friendly mobility.  Behaviour / use: energy-saving advice and sufficiency.  Silhouettes of diverse people are shown at the bottom, representing the inclusive impact of these measures.

    What does socially just climate protection mean?

    Image10/21/2025
    What does socially just climate protection mean? Support for the transition to climate-friendly alternatives is the most important lever for shaping sustainable, socially acceptable climate protection.
  • The twelve largest chemical parks in German industry

    Image07/08/2024
    The twelve largest German chemical parks generated 23 million tonnes of CO2 (mt CO2) in 2022, which corresponds to three percent of German greenhouse gas emissions.
  • Coastal Ecosystems: Blue Carbon Storage

    Image05/29/2024
    Seagrass meadows, mangrove forests and salt marshes can absorb and store up to 216 million tons of carbon from the atmosphere worldwide every year. Over centuries to millennia, they form an enormous carbon store of up to 22,000 million tons of carbon in marine sediment. At the same time, they make an important contribution to the preservation of biodiversity in the oceans and on the coasts, help to protect against storm surges and coastal protection and thus contribute to the nutrition and safety of millions of people. This is shown in a research report by the Öko-Institut and the Leibniz Center for Tropical Marine Research commissioned by the German Environment Agency, which examines the importance of coastal ecosystems for global climate protection.