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Results 21 - 40 of 115.


Environment - Health - 07.10.2019
The impact of ambient air pollution on hospital admissions
Air pollution is the centre of debate on many fronts, from air protection measures involving road traffic, to technological innovations to reduce harmful emissions.

Materials Science - Environment - 07.10.2019
The Wood Paradox
The Wood Paradox
It can be deformed as required and is three times stronger than natural wood: the wood material developed by Marion Frey, Tobias Keplinger and Ingo Burgert at Empa and ETH Zurich has the potential to become a high-tech material. In the process, the researchers remove precisely the part of the wood that gives it its stability in nature: lignin.

Transport - Environment - 03.10.2019
The right carbon tax to reduce the impact of transport in Switzerland
The right carbon tax to reduce the impact of transport in Switzerland
Using macroeconomic modeling, EPFL researchers have identified the most effective carbon tax for Switzerland to meet the Paris Agreement targets: a uniform levy on gasoline, diesel fuel and heating oil, rising steadily to 1.70 francs per liter by 2050.  The Swiss transport sector has become the country's leading CO2 emitter, accounting for 41% of total emissions.

Environment - 27.09.2019
From sink to source: turbulence in water releases hormones from sediment
From sink to source: turbulence in water releases hormones from sediment
Natural, human oestrogens, as well as synthetic substances such as the contraceptive pill, pesticides and industrial chemicals, are transported mainly via our wastewater into surface waters. These so-called hormonally active agents can upset the normal hormone balance of aquatic organisms such as fish, and affect their development, health and reproduction.

Environment - 24.09.2019
Better working environment in road construction
Better working environment in road construction
Brooding heat, hot fumes and noisy machines - asphalting roads is hard work. Empa researchers have analysed whether and how much harmful emissions are produced when regular "hot asphalt" or so-called warm asphalt is laid. The result: the more ecological warm asphalt also outperforms the conventional method in terms of emissions.

Life Sciences - Environment - 23.09.2019
Astonishing diversity of sticklebacks discovered in Lake Constance
Astonishing diversity of sticklebacks discovered in Lake Constance
Most recreational fishermen do not take notice of the little threespine stickleback fish - it is too small and spiny to make a good meal. In Lake Constance however, the professional fishermen involuntarily became acquainted with it a few years ago. That's because the stickleback population has exploded in the lake, resulting in half of the fish biomass belonging to this species and them often clogging the fishermen's gill nets.

Environment - 23.09.2019
Daylight levels affect our thermal perception
Daylight levels affect our thermal perception
A pioneering study carried out at EPFL shows that the amount of daylight in a room can influence our thermal comfort and how well we tolerate heat or cold. The findings could be used to improve existing building standards and decrease energy consumption.  The difference between reality and our perception of reality has long intrigued Western philosophers.

Life Sciences - Environment - 23.09.2019
Origin of the diversity of sticklebacks in Lake Constance deciphered
Origin of the diversity of sticklebacks in Lake Constance deciphered
Most recreational fishermen do not take notice of the little threespine stickleback fish - it is too small and spiny to make a good meal. In Lake Constance however, the professional fishermen involuntarily became acquainted with it a few years ago. That's because the stickleback population has exploded in the lake, resulting in half of the fish biomass belonging to this species and them often clogging the fishermen's gill nets.

Environment - Agronomy / Food Science - 19.09.2019
Dry run for cropping systems
Dry run for cropping systems
Globe magazine , News By: Michael Keller To safeguard the long-term future of agricultural production in Switzerland, ETH and Agroscope are investigating how resistant the country's crop­ping systems are to drought. The heatwave of 2018 was yet another warning to both farmers and the public on the effects of climate change: in the future, Switzerland will see less and less rain during the summer months.

Environment - 17.09.2019
Wood that shapes itself
Wood that shapes itself
Researchers from ETH Zurich, Empa and the University of Stuttgart have developed a new technique involving a controlled drying process that makes wooden panels bend into a pre-set shape without the use of any mechanical force. Wood is a renewable resource and a popular, sustainable construction material.

Environment - 17.09.2019
Montreal Protocol prevents depletion of ozone layer, but
Montreal Protocol prevents depletion of ozone layer, but
The Montreal Protocol on Substances that Deplete the Ozone Layer, which celebrated its 30th anniversary in 2017, was the first UN multilateral environmental agreement to be universally ratified (197 Parties by 2008). The aim of this treaty is to protect the stratospheric ozone layer - essential for life on Earth - by phasing out the production and controlling emissions of ozone-depleting substances (chlorofluorocarbons, CFCs).

Environment - Microtechnics - 12.09.2019
"Flying fish" robot can dive and fly
A bio-inspired bot uses water from the environment to create a propelling gas and launch itself from the water's surface. The robot had been developed by researchers at Imperial College London. It can travel 26 meters through the air after take-off and could be used to collect water samples in hazardous and cluttered environments, such as during flooding or when monitoring ocean pollution, report the team lead by Mirko Kovac, who also heads the joint "Materials and Technology Center of Robotics" at Empa, in the latest issue of "Science Robotics".

Environment - Earth Sciences - 12.09.2019
Gloomy forecast for the Aletsch Glacier
Gloomy forecast for the Aletsch Glacier
The largest glacier in the Alps is visibly suffering the effects of global warming. ETH researchers have now calculated how much of the Aletsch Glacier will still be visible by the end of the century. In the worst-case scenario, a couple patches of ice will be all that's left. Every year, it attracts thousands of visitors from around the world: as the largest ice flow in the Alps, the Great Aletsch Glacier is a major tourism draw in the Swiss region of Upper Valais, second only to the Matterhorn.

Environment - Social Sciences - 11.09.2019
Global Sustainable Development Report calls for urgent, coordinated action
Global Sustainable Development Report calls for urgent, coordinated action
A world without poverty, in which everyone's well-being is ensured: achieving this goal by 2030 is still possible, but only if the relationship between people and nature is fundamentally changed and social inequalities are reduced. That is the conclusion of the 2019 UN Global Sustainable Development Report, drafted by an independent group of scientists co-chaired by Peter Messerli, University of Bern, and Endah Murniningtyas.

Environment - 10.09.2019
Treating more wastewater with less energy
Treating more wastewater with less energy
More and more people are moving to cities and agglomerations in Switzerland, which is putting extreme pressure on some wastewater treatment plants: Because they are having to treat greater volumes of wastewater, their energy consumption is skyrocketing. And some WTPs are close to reaching capacity. Together with various project partners from industry, Eawag has now been testing out a new kind of technology for the past six months at the Sihltal WTP.

Environment - Innovation - 09.09.2019
Interest rates are a decisive factor for competitive renewables
Renewable energy has become competitive - and one often-overlooked reason is the reduced cost of financing. Researchers from ETH Zurich and the Potsdam Institute for Climate Impact Research (PIK) have modelled different scenarios in order to investigate the impact of rising interest rates on renewable energy.

Environment - 09.09.2019
Human influence on groundwater quality
Human influence on groundwater quality
Eawag researchers have identified the major anthropogenic threats and their chief origins in a review article. Intensive agriculture, urban sprawl, the pharmaceutical industry, poor wastewater infrastructure, lack of water-quality data as well as lack of awareness of the meaning of groundwater as a renewable resource are among the most urgent problems.

Environment - 04.09.2019
Natural ways of cooling cities
Natural ways of cooling cities
ETH scientists have been researching the effect of precipitation and population size on rising temperatures in cities compared with the surrounding countryside. They have found that more green spaces can help to lower temperatures in urban zones - but not everywhere. Urban heat islands are a phenomenon where the temperature in a city is noticeably higher than in the surrounding rural area.

Environment - Electroengineering - 03.09.2019
River under current
River under current
Switzerland is proud of its strongly developed use of hydropower. This covers almost 60% of the country's electricity needs. The production of around 36 terawatt hours (TWh) per year is now to be increased by a further 3 TWh by 2050 as part of the energy strategy. Eawag, the water research institute, is today presenting internal and external experts at the Swiss Museum of Transport in Lucerne on the challenges this poses for water bodies and the approaches society can take to meet these challenges.

Environment - Business / Economics - 03.09.2019
A blueprint for the EU's ecological transition
Two EPFL researchers have contributed to a discussion paper for new members of the European Parliament, published ahead of the resumption of parliamentary business this week. In their chapter, they suggest that reversing the tide of deindustrialization and redistributing industrial activities in Europe could cut energy consumption and CO2 emissions in the long run.