Non-metal catalyst splits hydrogen molecule
October 21, 2016 11:09 AM - Professor Matthias Wagner
Hydrogen (H2) is an extremely simple molecule and yet a valuable raw material which as a result of the development of sophisticated catalysts is becoming more and more important. In industry and commerce, applications range from food and fertilizer manufacture to crude oil cracking to utilization as an energy source in fuel cells. A challenge lies in splitting the strong H-H bond under mild conditions. Chemists at Goethe University have now developed a new catalyst for the activation of hydrogen by introducing boron atoms into a common organic molecule. The process, which was described in theAngewandte Chemie journal, requires only an electron source in addition and should therefore be usable on a broad scale in future.
New perovskite solar cell design could outperform existing commercial technologies, Stanford and Oxford scientists report
October 21, 2016 10:51 AM - Mark Shwartz
A new design for solar cells that uses inexpensive, commonly available materials could rival and even outperform conventional cells made of silicon.
Writing in the Oct. 21 edition of Science, researchers from Stanford and Oxford describe using tin and other abundant elements to create novel forms of perovskite – a photovoltaic crystalline material that’s thinner, more flexible and easier to manufacture than silicon crystals.
Protecting people and planet from "invisible killer" is focus of UN health campaign to tackle air pollution
October 20, 2016 04:50 PM - United Nations News Centre
The United Nations World Health Organization (WHO) in partnership with the Coalition for Climate and Clean Air (CCAC) and the Government of Norway has launched a global awareness campaign on the dangers of air pollution – especially ‘invisible killers’ such as black carbon, ground-level ozone and methane – for the health of individuals and the planet.
Titled BreatheLife: Clean air. A healthy future, the campaign aims to mobilize cities and their inhabitants on issues of health and protecting the planet from the effects of air pollution. Moreover, By WHO and CCAC joining forces, ‘BreatheLife’ brings together expertise and partners that can tackle both the climate and health impacts of air pollution.
Scientists find link between tropical storms and decline of river deltas
October 20, 2016 04:36 PM - University of Southampton
Research by the University of Southampton shows that a change in the patterns of tropical storms is threatening the future of the Mekong River delta in Vietnam, indicating a similar risk to other deltas around the world.
The study, funded by the UK Natural Environment Research Council (NERC) and undertaken in collaboration with the universities of Exeter (UK), Hull (UK), Illinois (USA) and Aalto University (Finland), found that changes in the behaviour of cyclones mean less sediment is running into rivers upstream of the Mekong delta, starving it of material vital for guarding against flooding. The findings are published in the journal Nature.
New 13-year Study Tracks Impact of Changing Climate on a Key Marine Food Source
October 20, 2016 03:08 PM - Woods Hole Oceanographic Institution
A new multiyear study from scientists at the Woods Hole Oceanographic Institution (WHOI) has shown for the first time how changes in ocean temperature affect a key species of phytoplankton. The study, published in the October 21 issue of the journal Science, tracked levels of Synechococcus—a tiny bacterium common in marine ecosystems—near the coast of Massachusetts over a 13-year period. As ocean temperatures increased during that time, annual blooms of Synechococcus occurred up to four weeks earlier than usual because cells divided faster in warmer conditions, the study found.
Move over, solar: The next big renewable energy source could be at our feet
October 20, 2016 02:56 PM - Will Cushman
Flooring can be made from any number of sustainable materials, making it, generally, an eco-friendly feature in homes and businesses alike.
Now, however, flooring could be even more “green,” thanks to an inexpensive, simple method developed by University of Wisconsin–Madison materials engineers that allows them to convert footsteps into usable electricity.
Safe new storage method could be key to future of hydrogen-powered vehicles
October 20, 2016 01:38 PM - University of Cambridge
Hydrogen is often described as the fuel of the future, particularly when applied to hydrogen-powered fuel cell vehicles. One of the main obstacles facing this technology – a potential solution to future sustainable transport – has been the lack of a lightweight, safe on-board hydrogen storage material.
Monthly record-warm streak ends, September 2nd warmest on record for globe
October 20, 2016 07:12 AM - NOAA
August's warmth spread into September, contributing to the warmest year to date for the globe, but not enough to continue the recent 16-month streak of record warmth. Even so, September 2016 ranked as the second warmest September on record.
Reducing ammonia pollution from cattle
October 19, 2016 04:13 PM - Luciano Barreto Mendes via International Institute for Applied Systems Analysis
Agriculture is responsible for 90% of all ammonia pollution in Europe, a considerable part of which comes from cattle manure management: a new study shows what steps to take to reduce this pollution.
Improved barn design, cleaning processes, and manure treatment could reduce ammonia emissions from commercial dairy cattle barns by 17 to 50%, according to a new study published in the journal Science of the Total Environment. The study provides a list of techniques and technologies that could provide the greatest reductions in ammonia emissions.
Reforesting Kilimanjaro could ease East Africa's severe water shortages
October 19, 2016 04:09 PM - United Nations News Centre
There is a need to reforest Africa’s highest mountain to help protect vital water supplies that are under threat across large parts of East Africa, a UN Environment report urged today.
The loss of Mount Kilimanjaro’s forests could trigger water crisis as rivers begin to dry up, notes the report, entitled Sustainable Mountain Development in East Africa in a Changing Climate, which was launched at the World Mountain Forum in Uganda today.