Blog

Study uncovers widespread and ongoing clearcutting of Swedish old forests

A small fraction of Sweden’s forests consists of older forests which have never previously been clear-cut. These rare ecosystems have a rich biodiversity and give us a valuable glimpse into the functioning of natural northern landscapes before widespread human interventions. A new study published in the journal Earth’s Future has uncovered evidence that almost a …

Study uncovers widespread and ongoing clearcutting of Swedish old forests Read More »

Air pollution threatens natural pest control methods in sustainable farming

The team, led by scientists from the University of Reading, used special equipment to deliver controlled amounts of diesel exhaust and ozone to oilseed rape plants. They also added aphids to the plants and measured the reproductive success of parasitic wasps that habitually lay their eggs inside a freshly stung aphid. Dr James Ryalls, University …

Air pollution threatens natural pest control methods in sustainable farming Read More »

Fertilizers limit pollination by changing how bumblebees sense flowers

The study, published in PNAS Nexus today, shows that chemical sprays alter the electric field around flowers for up to 25 minutes after exposure. This impact lasts substantially longer than natural fluctuations, such as those caused by wind, and causes a reduction in bee feeding effort in nature. Dr Ellard Hunting of Bristol’s School of …

Fertilizers limit pollination by changing how bumblebees sense flowers Read More »

Tropical cyclones act as ‘massive heat pumps’ that fuel extreme heat

Above-average temperatures almost always follow tropical cyclones — which by definition include tropical storms and hurricanes — and may soar to nearly 10 degrees Fahrenheit higher than average, according to a new University of Arizona-led study published in the Journal of Geophysical Research. The study’s authors stressed that their results are likely conservative estimates of …

Tropical cyclones act as ‘massive heat pumps’ that fuel extreme heat Read More »

Ultrathin solar cells promise improved satellite performance

In Journal of Applied Physics, by AIP Publishing, scientists from the University of Cambridge proposed a radiation-tolerant photovoltaic cell design that features an ultrathin layer of light-absorbing material. When solar cells absorb light, they transfer its energy to negatively charged electrons in the material. These charge carriers are knocked free and generate a flow of …

Ultrathin solar cells promise improved satellite performance Read More »

Ceramics that breathe oxygen at lower temperatures help us breathe cleaner air

Nearly all petrol or diesel cars are equipped with catalytic converters that remove harmful hydrocarbons, carbon monoxide and nitrogen oxide and convert them into safer gases such as nitrogen, carbon dioxide and water vapor. The toxic gases flow through a honeycomb structure, coated with exhaust gas purifying catalysts. Ceramics with an oxygen storage capacity (OSC) …

Ceramics that breathe oxygen at lower temperatures help us breathe cleaner air Read More »

The secret to the skillful skydiving of wingless springtails

Ortega-Jiménez brought the hypothesis back to his lab in Georgia Tech’s School of Chemical and Biomolecular Engineering (ChBE). Using a combination of computational and robophysical modeling, as well as fluid dynamics experiments, the researchers were able to see for the first time the mechanics of springtail movement. They determined how springtails control their jump, self-right …

The secret to the skillful skydiving of wingless springtails Read More »

Understanding rogue waves of the Eastern Mediterranean Sea

Recognizing a gap in scientific knowledge, an international team of researchers led by Francesco Fedele, associate professor in the School of Civil and Environmental Engineering at Georgia Tech, investigated potential hazards for ship navigation in the eastern Mediterranean. They looked at rogue waves, examined how they form, and analyzed the likelihood that a ship would …

Understanding rogue waves of the Eastern Mediterranean Sea Read More »