151 search results for “nitrogen demolition” in the Public website
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Sustainable demolition
Several buildings need to be demolished to make way for phase 2.
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Sustainable demolition of the Faculty of Science building
The demolition of the high-rise building is ready. The remaining debris are removed and the area is cleared. For the demolition, the University applied the BREEAM evaluation method at the level of ‘Excellent’, which means that the demolition operations were carbon neutral and did not cause any form…
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Soil and crop management options to improve nitrogen cycling on dairy farms on peat soil
The main research question of this thesis was: Can nitrogen cycling on dairy farms on peat soil in the Dutch Green Heart area be improved by adapting management to the nitrogen supply from soil and by using other grassland species and crops without affecting milk production?
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Impact of nitrogen fertilization on the soil microbiome and greenhouse gas emission
The use of N fertilizers has increased worldwide in the past century. While this increased input of N has increased food productivity, it has also contributed to decreases in biodiversity, soil quality and environmental health, including increases in greenhouse gas emissions.
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imaging of spin waves and magnetic phase transitions with nitrogen-vacancy centers in diamond
The elementary excitations of magnets are called spin waves, and their corresponding quasi-particles are known as magnons. The rapidly growing field of Magnonics aims at using them as information carriers in a new generation of electronic devices, (almost) free of electric currents.
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Nitrogen professor hands over book to nitrogen minister
Strengthening nature and at the same time investing in future-proof agriculture. That is the task of the Minister for Nature and Nitrogen, Christianne van der Wal. It is also the lifework of Leiden professor Jan Willem Erisman. He has been researching nitrogen for his entire career and has shown that…
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European law takes precendence over Dutch law in nitrogen issue
Statements made by Caroline van der Plas about nitrogen emissions and European law are incorrect: Armin Cuvyers on Dutch radio EenVandaag programme’s item ‘fact or fiction’.
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Dutch cabinet considers legal coercion towards provinces in nitrogen strategy
At present, the cabinet still maintains that all provinces are motivated to cooperate with the sensitive issue of the nitrogen strategy. However, there are major concerns that the political landscape will look very different once the elections for the Provincial Councils on 15 March have been held.
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Sustainable demolition of old laboratories at a glance
Leiden University is demolishing a number of old laboratories of the Faculty of Science in a sustainable way. The Dutch Green Building Council, an organisation that seeks to ensure sustainable construction and demolition, awarded this approach four stars.
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Possible impact of Dutch provincial council elections on nitrogen plans
These might be ‘just’ provincial council elections in the Netherlands, but the outcome on 15 March could have serious consequences for how the country is governed. Conflicts between the government in The Hague and the provinces, and tension within the Dutch cabinet, might be looming. On 1 July, every…
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With these small adjustments we can reduce nitrogen loss in peat meadows
Relatively simple adjustments can reduce nitrogen losses on dairy farms in peatland areas. That’s the conclusion of the PhD research by by Leiden environmental scientist Jeroen Pijlman at the Louis Bolk Institute. Protein-poor grass species and narrow-leaved plantain in the grassland can limit nitrogen…
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Armin Cuyvers on nitrogen policy following Timmermans' visit to The Hague
There is no time to lose when it comes to repairing damage to nature. For that reason and to show that the European Commission is neither a ‘bogeyman’ nor an enemy, European Commissioner Frans Timmermans came to the Dutch House of Representatives to talk with Caroline van der Plas, leader of political…
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Nitrogen report: Nitrogen expert Jan Willem Erisman identifies pluses and minuses
On 5 October, mediator Johan Remkes presented his report on the nitrogen crisis and what he thinks is the best way forward. Leiden University professor and nitrogen expert Jan Willem Erisman responds to Remkes’s recommendations. ‘It’s a step in the right direction.’
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What can you do to help solve the nitrogen crisis?
This semester we again organize the elective Nitrogen and Sustainability for 36 master students mainly from Industrial Ecology and Governance of Sustainability. The course helps the students to understand the complexity of the Dutch nitrogen crisis and the role different stakeholders play.
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Rogier Kegge on important provincial elections issue: nitrogen emissions
Dutch provinces must finalise their plans this summer to meet the government's targets on nitrogen emissions. Can the outcome of the provincial elections this week still change nitrogen policy? The NOS spoke about this issue with various parties including Rogier Kegge, assistant professor in administrative…
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New map of the Netherlands shows where nitrogen reduction will be most effective
By reforming agriculture in targeted areas, we can protect the Natura 2000 areas much more effectively. This is what Jan Willem Erisman of Leiden University and Ton Brouwer of Gispoint consultancy write in a new report. They have created a special, nitrogen map of the Netherlands that shows the areas…
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Material flow analysis for the C&D waste management systems in the Netherlands, Belgium, Spain and Finland
What are the flows of C&DW (e.g. bricks, concrete, gypsum and wood) in the case study countries ? How to define the specification for each material to be quantified? What indicators should be used to identify the pattern of each C&DW management system? How to interpret the MFA results in relation…
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Rogier Kegge in ‘de Volkskrant’ on the nitrogen crisis and the construction project exemption
Rogier Kegge, Assistant Professor at the Institute of Public Law of Leiden University, was interviewed by Dutch newspaper de Volkskrant in response to the recent recommendations by Johan Remkes on how to approach the nitrogen crisis.
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Hoekstra puts unity of Dutch Government at risk with nitrogen comments
Politicians in The Hague were in for an unpleasant surprise when the interview with CDA politician, and also current Dutch Foreign Affairs Minister, Wopke Hoekstra was published. Especially Hoekstra’s suggestion to let go of the Government’s target to reduce the amount of nitrogen by 2030 raised some…
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Assessing global regionalized impacts of eutrophication on freshwater fish biodiversity
Freshwater biodiversity has been threatened by eutrophication due to excessive nutrients in the environment. Releasing the freshwater species from such pressures requires efforts from industry and manufacturers to avoid emissions to vulnerable and high-risk regions.
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Berent Baris
Science
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Jan Willem Erisman
Science
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Chemical functionalization of the graphene surface for electrical and electrochemical sensing application
Advanced sensing techniques require graphene with high quality and well-controlled surface chemistry.
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Towards circular and energy-efficient management of building stock
Material circularity and energy efficiency are highly relevant and intertwined issues for the transition towards a carbon-neutral and circular built environment. In the Netherlands, the building sector has been rendered a priority towards a circular and low-carbon society.
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Linking soil microbial community dynamics to N2O emission after bioenergy residue amendments
Vinasse is a major by-product generated by the sugarcane biofuel industry. It is a source of microbes, nutrients and organic matter and often it is recycled as fertilizer.
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Catrin Böcher
Science
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Tycho Jongenelen
Science
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Integrated life cycle assessment and life cycle costing of concrete recycling in the Netherlands
Integrating life cycle assessment (LCA) with life cycle costing (LCC) offers the opportunity to simultaneously analyze the environmental and economic aspects of product alternatives, for the integration of which a unified computational has been proposed by Heijungs et al. (2013) [1]. The project aims…
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Gorlaeus Bicycle Storage
A part of the steel construction of the former Gorlaeus high-rise will form the basis of a new green bike park which is part of the redevelopment of the Faculty of Science.
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Varkenshouder raakt door stikstofcrisis verstrikt in juridisch steekspel
Door onduidelijke stikstofregels komen milieuzaken steeds vaker voor de rechter. De zaak van een Reeuwijkse varkenshouder leidt al tientallen jaren lang tot een getouwtrek tussen een milieuorganisatie, de provincie en de rechter. Rogier Kegge, universitair docent Staats- en bestuursrecht, bespreekt…
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How to set ambitious goals for sustainable agriculture
Food production in the Netherlands is an economic success but has led to many environmental issues, including nitrogen pollution. Recently, the policy to allow economic growth while reducing nitrogen losses was disapproved by the highest court in the Netherlands, casting the country into a nitrogen…
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Provincial council election results prove democracy is functioning well
Voters sent a clear signal in the recent Dutch provincial council elections with the 'monster' victory for the Farmer-Citizen Movement (BoerBurgerBeweging, BBB). This sign of ‘social resistance’ has consequences for the policy on nitrogen emissions, according to Geerten Boogaard, Professor of Local…
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Sustainability
Leiden University takes its place at the heart of society seriously, and the university is committed to helping build a sustainable society. Making buildings more sustainable contributes to achieving Dutch and European environmental standards. Leiden University takes this into account in all its building…
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Perfect for designing new molecules
Even a small quantum computer should be able to simulate exactly the properties and behaviour of new molecules. This would take chemistry to an entirely new level. Better solar panels, more powerful batteries, saving lots of energy in the chemical industry: the applications have the potential to transform…
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Atom addition reactions in interstellar ice - new pathways towards molecular complexity in space -
Promotor: Prof.dr. H.V.J. Linnartz, Co-Promotores: S. Ioppolo, H.M. Cuppen
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Cryogenics Department
The Cryogenics Department has a liquid helium production unit and an automatic liquid nitrogen filling plant.
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'Better to take action today, than to deal with the damage tomorrow'
It’s better to cut our nitrogen emissions now than to solve the consequences later at great expense. That’s the lesson we can learn from the Dutch nitrogen crisis, according to nitrogen expert Jan Willem Erisman. In Science, he shares this lesson with other countries. According to Erisman, we should…
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Linking simple molecules to grain evolution across planet-forming disks
Planets are formed in disks of gas and dust around young stars.
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Urban
Urbanization brings benefits like housing and jobs but also challenges like biodiversity loss. CML's Urban research program uses science to create sustainable cities, focusing on the built environment (circular economy, urban mining) and enhancing urban nature for biodiversity and human benefits.
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CBAC & MCBIM Reunion for PhD students and Postdocs
Alumni event
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Sustainability
Leiden University is a integral part of the community and contributes to a sustainable society. Over the coming years our University will become even greener.
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Gorlaeus Bicycle Storage
Currently, the construction is underway for a large, covered bicycle parking facility with space for nearly 3000 bicycles. In the summer of 2024, the Gorlaeus bicycle parking will be ready for use.
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Substances from Cradle to Grave
Materials balances have been used in the recent past for the analysis of substance oriented environmental problems and the formulation of measures for environmental policy. In this study an integrated tool, based on the materials balance principle, has been developed for the analysis of both environmental…
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University buildings
What is Leiden University doing to make its buildings future-proof and independent of fossil energy?
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Beyond the Safe Space: LUGO Podcast Miniseries
These podcast episodes were written for the Green Office’s Spring Podcast competition and miniseries 'Beyond the Safe Space', on the theme: the Planetary Boundaries, which took place between the months of March-May 2023.
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Nitric oxide in defence against mycobacterial infection
Can we enhance the capacity of host immune cells to kill mycobacteria via production of reactive nitrogen species?
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A compound that gives life as easily as it takes: Jan Willem Erisman on BBC about ammonium nitrate
Following the Beirut explosion, BBC's podcast series The Foodchain explores the chemical that caused the blast: ammonium nitrate. A compound that is widely used to produce fertilizer. Professor of Environmental sustaibability Jan Willem Erisman tells about the effects of nitrogen on the environment.
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Liveable Planet
Crises like climate change and loss of biodiversity threaten our planet. That’s why sustainability is an important topic in research and education across Leiden University. On this website you read how scientists from many disciplines work together in researching sustainability.
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Gorlaeus Building
Leiden University is realizing a new and sustainable building with state-of-the-art research and education facilities for the Faculty of Mathematics and Natural Sciences, the Gorlaeus Building. The construction of the second phase, completed in January 2024, has resulted in a further expansion of the…