Removing carbon dioxide from power plant emissions is a good idea to start with -- and it may have an extra economic benefit. A Michigan Tech engineering is presenting their results this week on turning carbon dioxide into oxalic acid, which is used to process rare earth elements for electronic devices.
Scientists found that riverine dissolved inorganic nitrogen in the USA has increased primarily due to the use of nitrogen fertilizers. In contrast, European rivers were affected mainly by point source pollution. However, both aspects are equally important for aquatic environments in China.
Over the past 20 years, concentrations of pharmaceuticals have increased in freshwater sources all over the world, as research by environmental experts at Radboud University has revealed. Levels of the antibiotic ciprofloxacin have reached the point of potentially causing damaging ecological effects. The research is the first to examine the risks of two particular medicines in global freshwater sources, and is being published in Environmental Research Letters on Feb. 22. 'The study calls for more widespread data gathering to measure the problem around the world.'
The world's largest coordinated network of protected areas is not located at the South Pole or in Australia, Africa, Asia or on the American continents -- but in Europe. As part of an international team, researchers from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries have examined how effectively Natura 2000 protects listed habitat types in Germany. The result: although the existing network includes sites of special interest, not all habitat types are represented proportionally.
In an Indoor Air study conducted in a suburb of the city of Kuopio, Finland, relatively short-lasting wood and candle burning of a few hours increased residents' daily exposure to potentially hazardous particulate air pollution. Associations between indoor air pollutants and building ventilation or cooking were also observed.
Low density polyethylene film (LDPE) microplastic fragments, successfully degraded in water using visible-light-excited heterogeneous ZnO photocatalysts. The innovative sunlight-harnessing microplastics degrading technology is part of a study funded by the EU Horizon 2020 funded project CLAIM: Cleaning Marine Litter by Developing and Applying Innovative Methods in European Seas (GA no. 774586).
The most extensive radio-tracking effort of bottlenose dolphins in the Indian River Lagoon using radio-telemetry reveals new and surprising information about how they use their habitats, how they spend their time, and how they interact with their own species. Researchers conducted radio-tracking by boat, with assistance from a Cessna 172 aircraft, and visually located and followed nine dolphins several times per week. Over the course of 122 hours of observation, they compiled a total of 1,390 scan samples.
Fossil fuel combustion is the main contributor to black carbon collected at five sites around the Arctic, which has implications for global warming, according to a study by an international group of scientists that included a US team from Baylor University.
New research from Binghamton University, State University of New York, highlights the importance of considering cold temperature variability, and not just warming temperatures, when evaluating the impact of climate change.
An international group of toxicologists, which includes experts from the Far Eastern Federal University (FEFU), pointed out that unicellular microalgae, the most common microorganisms on Earth and an important part of the food chain for more developed organisms, serve as an effective biomarker of environmental pollution. They quickly respond to chemical contamination of the environment by oxidative stress. The study was published in Current Opinion in Toxicology.