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News New high-tech fabric made from old functional clothing: TheKey research project reaches its first milestone

Polyester-cotton blends are standard in protective, work and sports clothing thanks to their functional advantages. However, recycling them remains difficult: mechanical processes reduce quality and a

News Impact on the climate from the German electricity mix declining

ifeu calculates the environmental impact of German and European electricity consumption on an annual basis. The climate impact of the German electricity mix will have fallen significantly by 2024. Thi

News The state of construction research in Germany – researchers call for support

The transformation of the building sector requires enormous effort: Decarbonisation in construction and operation, end-to-end digitalisation of planning, construction and maintenance, creation of affo

News GHG accounting simplified: Uniform emission factors from the Umweltbundesamt – with data from ifeu

More and more companies and other organisations are required or wish to record their GHG emissions – whether due to EU regulations, national climate regulations or customer requirements. Until now, su

News Change of managing director at ifeu

On 1 March 2026, Andreas Detzel will hand over his position as Commercial Director to Andreas Höger. The decision was made at his own request with the aim of reducing his working hours in order to hav

News Evaluation reports 2024 of the federal subsidy for efficient buildings (BEG)

With the ‘Federal Funding for Efficient Buildings’ (BEG), the federal government is promoting both the energy-efficient refurbishment efforts of building owners and the switch to heating with renewabl

News Fuel consumption and CO2 emissions of plug-in hybrid vehicles in real-world driving conditions

New study by Fraunhofer ISI, Öko-Institut and ifeu highlights need for action and possible regulatory implications Plug-in hybrid electric vehicles (PHEVs) can run on electricity or a combustion engin

Publication Regulatory adjustments needed for plug-in hybrid vehicles in Europe

Authors: Patrick Plötz , Till Gnann , Peter Kasten , Jan Steinbach , Julius Jöhrens
Year: 2026

Download Analysis (PDF, 2 MB)

Download Policy Paper (PDF, 480 KB)

Download BiBTex

Publication Rohstoffbedarf BW: Analyse, Risikobewertung und Zukunftskonzepte (RoBW)

Förderkennzeichen L75 24123

Authors: Sonja Limberger , Anja Kathan , Antonia Bonnaire , Birte Ewers
Year: 2026

Download RoBW-Study (in German) (PDF, 5 MB)

Download BiBTex

News Methane emissions from Europe’s landfills: Scenarios and Data Challenges

Methane emissions from landfills represent a significant and often underestimated climate challenge. Methane is the second most important greenhouse gas after carbon dioxide, with a higher Global Warm