Researchers from Tokyo Metropolitan University have shown that a newly engineered catalyst made of gold nanoparticles supported on a metal oxide framework shows breakdown of ammonia impurities in air, with excellent selectivity for conversion to nitrogen gas. Importantly, it is effective at room temperature, making it suitable for everyday air purification systems. The team successfully identified the mechanism behind this behavior, paving the way towards the design of other novel catalytic materials.
Tropical Cyclone Veronica continued to move toward Australia's Pilbara Coast in Western Australia. NASA-NOAA's Suomi NPP satellite provided visible and infrared images of the storm that indicated heavy rainfall.
Visible imagery from NASA's Aqua satellite showed Tropical Cyclone Trevor filling up Australia's Gulf of Carpentaria.
In a perspective essay published this week in Nature Communications, scientists argue for more 'synthesis' research looking at the big picture of volcanology to complement myriad research efforts looking at single volcanoes.
An OU-led project is showing how citizen science programs provide valuable data on rivers in southwestern United States. The ecological and hydrological data obtained from intermittent rivers (rivers that dry at some point in space or time) in Arizona are input into a nationwide network. Trained citizen scientists are mapping three rivers in Arizona: the San Pedro River, Cienega Creek and Agua Fria River.
Researchers have found warmer average water temperatures in Ontario lakes over the past decade have forced fish to forage in deeper water.
In October 2015, England introduced a charge for single-use plastic bags in supermarkets. An international research team, including Elena Sautkina from the Higher School of Economics, has conducted a mixed-methods longitudinal study and determined the extent to which British people approved of this policy initiative, and whether they were ready to support other environmental charges. The results were published in Frontiers in Psychology journal.
The ongoing climate changes make it increasingly difficult to predict certain aspects of weather, according to a new study from Stockholm University. The study, focusing on weather forecasts in the northern hemisphere spanning 3-10 days ahead, concludes that the greatest uncertainty increase will be regarding summer downfalls, of critical importance when it comes to our ability to predict and prepare for flooding.
The methods can be replicated by cities to help them identify which neighborhoods are most at risk and what demographic factors characterize the most vulnerable citizens.
Luke Frishkoff, University of Texas at Arlington assistant professor of biology, explores how human land use expedites biodiversity loss in a paper recently published in Nature Ecology & Evolution.