The bioeconomy can be a central building block for the transformation of our largely coal, oil and gas-based economy. However, renewable raw materials and synthetic carbon compounds are scarce and expensive. They should be used in areas such as the chemical industry - not as energy sources. For the shift from a fossil-based economy to a bioeconomy to succeed, fossil carbon must also become more expensive. The ifeu now presents the results of four trend-setting studies.
Kategorie für Blog: Resource efficiency
103 posts
The housing shortage is an immense social problem in many large cities and conurbations. At the same time, the building sector has been failing to meet its environmental and climate targets for years. In a recent position paper, the Federal Environment Agency (UBA) and the Commission for Sustainable Building at the UBA (KNBau) have examined how more affordable housing can be created without unnecessarily harming the environment and health. According to this paper, the most important factor for more environmental protection in housing construction is that the existing building stock is preserved wherever possible or is sensibly converted and repurposed. This is the easiest way to avoid climate emissions and unnecessarily high consumption of raw materials. Today, UBA President Prof. Dr. Dirk Messner presented KNBau's proposals to Federal Minister of Building Klara Geywitz and Federal Minister of the Environment Steffi Lemke in Berlin.
In December 2020, the German Timber Industry Association (HDH) launched the "Initiative for Climate Protection in the Timber Industry". The aim is to support the industry companies in the necessary reduction of CO2 emissions. The initiative is now being further developed into an innovation cluster.
Author of the book review: Roman Schaurhofer, Vienna
The construction volume "Commercial Buildings in Clay and Wood - Added Value through Material" was published in 2020 by Sabine Djahanschah of the Deutsche Bundesstiftung Umwelt (German Federal Foundation for the Environment) at Verlag Detail. The publication, which appeared in book form, deals with the use of the building materials wood and clay in the construction of commercially used buildings. To this end, six buildings with commercial use were analysed in terms of their architectural construction and technical quality features and evaluated with the help of measurements, surveys and life cycle assessments.
The Special price on the topic "Urban development revisited: Prices - Practice - Perspectives" was given to the project Urban development area Stuttgarter Straße, French Quarter in Tübingen. The special prize, which is awarded in parallel to the urban development prize, serves to highlight particularly urgent fields of action in urban development and urban planning. It was awarded on 23.4.2021 on the occasion of the 40th anniversary of the German Urban Development Prize to contributions that had already been recognised with prizes and awards between 1980 and 2010. The judging of the special prize was very complex, as it had to cover a span of 30 years, i.e. a generation, of the achievements of German urban development that were considered outstanding at the time, and, in retrospect, it had to be based on robust, objective criteria that could adequately reflect the complexity of 30 years of urban development history and 30 years of urban development models.
The prize is awarded every two years by the German Academy for Urban Development and Regional Planning (DASL) with significant support from the Wüstenrot Foundation. Urban Development Award in the DSP 2020 competition goes to the project Quarter at the former Blumengroßmark in Berlin. With 81 applications, a particularly large number of projects were submitted for the Urban Design Award. The spectrum was very broad: urban-structural-geographical, thematic, structural-spatial. From the new town hall in the urban planning context of a small municipality to the large conversion project of a metropolitan region, the interdisciplinary jury (urban planning, architecture, open space planning, preservation of historical monuments, economics, sociology) was faced with a very difficult decision in many cases.
Sustainable development in Germany is inconceivable without a resource-efficient construction industry. The new expert recommendation VDI-EE 4802 Sheet 1 explains in a practical way how to apply the concept of resource efficiency in the life cycle of buildings. To this end, it breaks down the tasks and scope for action of the individual players in the construction process. Using examples of increased material, energy and space efficiency, the expert recommendation supports the entire planning process towards a resource-efficient building.
"The raw material wood is precious. It is therefore important to use it responsibly and in a way that conserves resources," warns Peter Aicher, Chairman of Holzbau Deutschland. Even if wood is affected by environmental influences or the bark beetle, it does not represent an inferior raw material, but has almost identical properties to conventional construction timber. "If the so-called 'calamity wood' has the same structural quality in terms of load-bearing capacity as conventional sawn timber, it can be used without restrictions," explains Aicher. In addition, the wood retains its important function as a CO2 sink, regardless of external impairments.
A new study from Denmark takes a look at the costs of sustainable building construction and shows that more sustainable does not automatically mean more expensive. On the contrary. The study by Buus Consult on behalf of the DGNB system partner from Denmark, the Green Building Council Denmark, now provides clarity. In the study, it takes a close look at 37 DGNB-certified buildings.
In the current publication, the wohnbund takes a look at the development of new urban quarters. Backwards - with the question of what became of the goals that were set for individual projects. To the present day - to the concepts that are being implemented in response to current challenges.
On the occasion of the meeting of EU Ministers for Urban Development and Territorial Cohesion on the "New Leipzig Charter", Daniela Wagner, spokesperson for urban development for Alliance 90/The Greens in the German Bundestag, explains:
We welcome the "New Leipzig Charter". Without the transformative power of cities and the ideas and drive of their residents, we will not be able to overcome the challenges of the climate crisis. Nevertheless, the Charter contains significant gaps. The guiding principle of the resilient city is missing. The development of robust and resilient cities is important in order to better assess risks and recognise and prevent dangers in good time. The guiding principle of the healthy city is also not mentioned - despite the heatwaves caused by the climate crisis, a never-ending stream of air pollutants from fossil fuelled combustion engines and the current challenge of a global pandemic.
The ecological model settlement on a former barracks site in Munich sets new standards in timber construction. Various timber construction methods and building types up to seven storeys are being tested side by side in eight building projects with the aim of a final scientific evaluation. Timber frame, timber frame and timber hybrid construction methods are being used.
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.
Since April 2020, the Öko-Institut has been conducting research into how urban neighbourhoods can be sustainably transformed, using two neighbourhoods in the swarming city of Darmstadt as examples, in the project Transformative Strategies for Integrated Neighbourhood Development (TRASIQ 2). The Federal Ministry of Education and Research is funding the project, which is led by the Öko-Institut and involves the City of Darmstadt, the Institute for Regional and Urban Development Research (ILS) and the "Team Ewen" agency.
Mobility, heat and living space
The project focuses on the research topics of mobility, heat supply and efficient use of living space. Heat supply is an important key to climate-friendly living. How and where, for example, can district heating be expanded in existing properties? How can we increase the share of renewable energies in the heat supply? The size of the living space also contributes to how environmentally friendly a person lives. What needs to be done to ensure that people have the living space they need in their particular phase of life through intelligent apartment swaps? How can neighbourhoods be redesigned so that residents can organise their mobility ecologically?
With the gradual dismantling of ten particularly climate-damaging subsidies in the energy, transport and agricultural sectors, Germany could generate up to 46 billion euros in revenue annually. This is the result of a new study by the "Forum Ökologisch-Soziale Marktwirtschaft" commissioned by Greenpeace.
Glaciers are melting, sea levels are rising, heat waves and heavy rainfall are increasing: The consequences of climate change are visible and tangible worldwide, and the window of opportunity to act is shrinking. In order to significantly limit the global effects of climate change, the emission of greenhouse gases on earth must be drastically reduced. The agreement reached by the international community in Paris in 2015 sets the goal of limiting global warming to well below 2 degrees Celsius, but preferably to 1.5 degrees Celsius. Now, the Wuppertal Institute presented a study with possible cornerstones that can help to achieve the 1.5 degree target by 2035. The study shows that a climate-neutral energy system by 2035 is very ambitious, but in principle feasible, provided that all possible strategies from today's perspective are bundled. This requires, above all, bringing forward and intensifying measures that are described in many studies as necessary to achieve greenhouse gas neutrality by 2050.
Hydrogen is an important alternative for sectors stuck in the fossil fuel economy. As national governments and European parliamentarians negotiate the EU's hydrogen strategy, EASAC issues a new commentary. "Hydrogen can help reduce our dependence on fossil fuels," says William Gillett, Director of EASAC's Energy Programme. "But the climate benefits are limited if we use fossil fuels to produce it - even with carbon capture and storage. The EU must put an end to fossil fuel subsidies. The rapidly growing demand for hydrogen must be met by a massive increase in electricity generation from renewables, together with certified imports from third countries."
CO2-Emissions should be reduced by 65 percent over the next ten years compared to 1990 in order to achieve climate neutrality - Energy system must be converted to 100 percent renewable energies by 2040 - Investment of 3,000 billion euros required to meet European Green Deal and Paris climate targets - German EU Council Presidency can ensure that Corona aid packages link economic stimulus with climate protection
At the proposal of the Federal Environment Ministry, the Federal Cabinet adopted the third German Resource Efficiency Programme (ProgRess III) on 17 June 2020. With this programme, the government aims to achieve an economical use of raw materials. Companies in particular are to use natural resources more efficiently along the entire value chain. Greater use is to be made of digital solutions to increase resource efficiency. The decision in favour of resource-saving products is to be made easier for citizens through improved information.
Zur heutigen Kabinettssitzung und der dabei geplanten Befassung mit dem Entwurf eines Deutschen Ressourceneffizienzprogramms III (ProgRess III) erklären Dieter Janecek, Sprecher für Industriepolitik und digitale Wirtschaft, und Dr. Bettina Hoffmann, Sprecherin für Umweltpolitik und Umweltgesundheit:
Mit ProgRess III tritt die Bundesregierung auf der Stelle. Zwei Ressourceneffizenzprogramme der Bundesregierung konnten nicht verhindern, dass der deutsche Rohstoffverbrauch weiterhin steigt. Es ist absehbar, dass auch das dritte Ressourcenprogramm der Bundesregierung daran nichts ändert. Auch ProgRess III bleibt ein längliches Sammelsurium von Plänen, Ankündigungen und Prüfaufträgen.
The Federal Chamber of Architects (BAK) and the Federal Foundation of Baukultur presented their proposal for a "Baukultur Innovation Programme" to politicians in Berlin today on behalf of the planning and construction industry.
Anne Katrin Bohle, State Secretary at the Federal Ministry of the Interior, Building and Community, accepted the four-point plan. In it, the authors suggest measures to overcome the coronavirus crisis that will have a lasting economic and social impact.
While the emergency aid for companies is getting underway, the debate about possible post-crisis economic stimulus packages is also gaining momentum. The German Green Business Association is proposing a transformation fund to combine a new start for the economy with social aspects and environmental and climate protection.
Sustainable development is hardly conceivable without a consistent circular economy. Turning away from a predominantly linear economy requires a change of course. UBA has drawn up guiding principles for politics, business and society which systematically set out the objectives, scope for action, standards of action, requirements and success factors of a circular economy.
Konturen einer solidarischen Stadtpolitik
Anton Brokow-Loga (Hrsg.),
Frank Eckardt (Hrsg.)
Städte ohne Wachstum – eine bislang kaum vorstellbare Vision. Doch Klimawandel,
Ressourcenverschwendung, wachsende soziale Ungleichheiten und viele andere
Zukunftsgefahren stellen das bisherige Allheilmittel Wachstum grundsätzlich infrage. Wie wollen
wir heute und morgen zusammenleben? Wie gestalten wir ein gutes Leben für alle in der Stadt?
Min. 4:36; Video from 18.02.2020; Ed.: MWSP Mannheim
Mannheim's conversion is green - this is demonstrated by the work of the municipal development company MWSP on the TURLEY, TAYLOR, FRANKLIN and SPINELLI sites.
From 2022, all new public buildings must be made of at least 50 per cent wood or other sustainable building materials. For buildings with more than eight storeys, the supporting structure must even be made entirely of wood. It was also decided that 90 ecological neighbourhoods and 100 urban farms will be built in Paris.
Newly built districts with space-efficient mobility offers
A new sustainable urban district is being built on the west side of the Merwedekanal in a central location not far from Utrecht Central Station. The plan is to create a mixed-use district with 6,000 to 9,000 homes for approximately 12,000 residents. The area will become a showcase for healthy and sustainable living with innovative concepts for recycling, energy production, climate adaptation and mobility solutions. Planned completion: by 2024
Since 1 January 2020, all new buildings and general renovations of the BIG Group have been subject to the Group-wide mandatory minimum sustainable standard. The BIG minimum standard goes beyond the legal requirements and ensures that all projects of BIG and its subsidiary ARE achieve the klimaaktiv SILVER standard in any case. The sustainable minimum standard of the Bundesimmobiliengesellschaft (BIG) is a catalogue of criteria that must already be taken into account in the planning process for buildings. This makes the implementation of 43 measures of the BIG Holistic Building Programme (HBP)* and the achievement of at least 750 klimaaktiv points mandatory for all new construction and general refurbishment projects for which a planning invention procedure will be carried out from 2020. By implementing the minimum standard, CO2 emission values are significantly reduced, climate-damaging building materials are avoided and the phase-out of fossil fuels is accelerated.
Recently, the Austrian state of Vorarlberg published the subsidy guidelines for 2020 and 2021 for residential renovation and new construction in the private and public sectors. The climate-friendly procurement of wood and wood products from the region is anchored in these guidelines. The origin of the wood must be proven by means of the "Holz von Hier" label recently introduced in Austria or comparable certificates.
A research project conducted by natureplus in conjunction with IFEU compares insulation materials with regard to their environmental impact throughout their entire life cycle, including recovery and recycling.
Which insulation material is the best? This question is extremely popular in the construction industry and can ultimately only be answered in the context of the respective construction. In particular, there has so far been a lack of a holistic overview that enables builders and planners to identify the strengths and weaknesses of the various insulation material alternatives in terms of their life cycle assessment, without having to disregard subsequent disposal.
Thuringia is making six million euros available this year for investments in municipal climate protection. The funding comes from the state's "Klima Invest" programme, which has already provided more than 15.5 million euros in investments in municipalities since the beginning of 2018, as the Ministry of the Environment announced in Erfurt on Thursday. 312 applications for funding have been approved.
27.01.2020 A material revolution that replaces cement and steel with wood in urban construction can have double benefits for climate stabilization. This is now shown in a study by an international team of scientists. First, it can avoid greenhouse gas emissions from cement and steel production. Secondly, it can turn buildings into carbon sinks, since in the construction timber the CO2 is stored. Although the required amount of wood is theoretically available, such an expansion would require very careful sustainable forest management, the authors emphasize.
21.01.2020 Everyone is talking about sustainability - including the construction industry. A prize that the Federal Ministry for the Environment, Nature Conservation and Nuclear Safety (BMU) and the Federal Environment Agency (UBA) have been offering since today provides the appropriate topic for discussion: With the new "Federal Award for Environment and Building", which will be awarded for the first time in 2020, the initiators want to distinguish projects with exemplary character in terms of sustainability - not only in the classic areas of existing buildings and new buildings, but also in five other categories. All players in the building sector can apply. The deadline for entries is 15 April 2020.
The Munich City Council's Committee for Urban Planning and Building Regulations has decided to promote the construction of new, contemporary timber construction projects. This year, the city council will develop a further subsidy programme for construction using wood and other renewable raw materials.
The grant programme is suitable for individual projects as well as larger housing estates and neighbourhoods. The aim of the city council is to ensure that around 50 per cent of the buildings on municipal land are constructed using timber.
