British scientists could experiment with techniques to block sunlight as part of a £50 million government funded scheme to combat global warming. The geo-engineering project is set to be given the go-ahead within weeks and could see scientists explore techniques including launching clouds of reflective particles into the atmosphere or using seawater sprays to make clouds brighter. Another method involves thinning natural cirrus clouds, which act as heat-trapping blankets. If successful, less sunlight will reach the earth’s surface and in turn temporarily cool the surface of earth. It’s thought to be a relatively cheap way to cool the…
The first genetically engineered synapses have been implanted in a mammal’s brain. Chemical brain signals have been bypassed in the brains of mice and replaced with electrical signals, changing their behaviour in incredible ways. Not only did they become more sociable, they were also less anxious and exhibited fewer OCD-like symptoms. This work has sparked hope that one day we could use this technology to help humans with mental health conditions. But would you want someone making permanent edits to your brain?
For the first time, climate scientists can now link specific fossil fuel companies to climate-related economic damages in particular places. A new method has been developed that can show the exact impact these companies are having on our environment — which the world’s top five emitters linked to trillions of dollars of economic losses. Find out how scientists have managed to piece this together — and whether these companies are about to face massive lawsuits.
As we reflect on the death of Pope Francis, we explore his legacy on scientific issues and his transformative stance on climate change. As the spiritual leader of 1.4 billion Catholics, he became an influential figure in advocating for better care to be taken of our planet. Will his legacy continue with the next Pope?
Chapters: 00:00 Intro. 00:28 First brain engineering in a mammal. 10:57 Landmark in fossil fuel lawsuits. 19:33 Climate legacy of Pope Francis.
Hosted by Rowan Hooper and Penny Sarchet, with guests Alexandra Thompson, James Dinneen, William Schafer, Chris Callahan, Justin Mankin and Miles Pattenden. – Learn more ➤ https://www.newscientist.com/podcasts.
Lithium-ion batteries have been a staple in device manufacturing for years, but the liquid electrolytes they rely on to function are quite unstable, leading to fire hazards and safety concerns. Now, researchers at Penn State are pursuing a reliable alternative energy storage solution for use in laptops, phones and electric vehicles: solid-state electrolytes (SSEs).
According to Hongtao Sun, assistant professor of industrial and manufacturing engineering, solid-state batteries—which use SSEs instead of liquid electrolytes—are a leading alternative to traditional lithium-ion batteries. He explained that although there are key differences, the batteries operate similarly at a fundamental level.
“Rechargeable batteries contain two internal electrodes: an anode on one side and a cathode on the other,” Sun said. “Electrolytes serve as a bridge between these two electrodes, providing fast transport for conductivity. Lithium-ion batteries use liquid electrolytes, while solid-state batteries use SSEs.”
Japan has taken a significant step forward in renewable energy with the successful deployment of its first megawatt-scale tidal turbine, the AR1100. Installed in the Naru Strait, this 1.1 MW tidal turbine represents a major breakthrough in marine energy technology. As Japan moves towards a sustainable, fossil-fuel-free future, tidal energy is poised to play a crucial role in the country’s energy transition.
This latest achievement builds upon the success of the AR500 pilot project, which demonstrated the viability of tidal energy with a 97% availability rate. With the AR1100 now operational, Japan has entered the global race to harness ocean power on a large scale.
This article will explore how tidal energy works, the advantages of this technology, Japan’s commitment to renewable energy, and the impact of the AR1100 project on the future of clean power generation.
A study conducted by CNRS researchers describes a new method of recycling silicone waste (caulk, sealants, gels, adhesives, cosmetics, etc.). It has the potential to significantly reduce the sector’s environmental impacts.
This is the first universal recycling process that brings any type of used silicone material back to an earlier state in its life cycle where each molecule has only one silicon atom. And there is no need for the raw materials currently used to design new silicones. Moreover, since it is chemical and not mechanical recycling, the reuse of the material can be carried out infinitely.
How does climate change influence how birds can adjust to different climate conditions worldwide? This is what a recent study published in Nature Communica | Earth And The Environment
A new study in Science shows that the incorporation of a synthetic molecule into the design enhances the energy efficiency and longevity of perovskite solar cells. The benefits of the molecule, known as CPMAC, were found through an international collaboration that included King Abdullah University of Science and Technology (KAUST).
CPMAC is an abbreviation for an ionic salt synthesized from buckminsterfullerene, a black solid made of carbon atoms known as C₆₀. Perovskite solar cells are typically made with C₆₀, which has contributed to record energy efficiency. While preferred, C₆₀ also limits the performance and stability of the solar cells, leading scientists to explore alternative materials.
“For over a decade, C₆₀ has been an integral component in the development of perovskite solar cells. However, weak interactions at the perovskite/C₆₀ interface lead to mechanical degradation that compromises long-term solar cell stability. To address this limitation, we designed a C₆₀-derived ionic salt, CPMAC, to significantly enhance the stability of the perovskite solar cells,” explained Professor Osman Bakr, Executive Faculty of the KAUST Center of Excellence for Renewable Energy and Sustainable Technologies (CREST), who led the KAUST contributions to the research.
Using spill-treating agents to clean up oil spills does not significantly hinder naturally occurring oil biodegradation, according to a new study. The research, published in Applied and Environmental Microbiology, provides information that will be useful in future oil spills.
Biodegradation is an incredibly important natural process when it comes to oil spill cleanup. A significant portion of the oil can be permanently removed from the contaminated area through microbial activity. On-scene coordinators and other first responders must weigh the benefits against potential risks of any response action, such as using spill-treating agents. Emergency response actions to oil spills vary widely depending on the scale of an oil spill, location and environmental conditions.
Different treating agents serve different functions. Oil dispersants break the oil into smaller droplets. Surface washing agents lift stranded oil from solid substrates. Chemical herders corral oil into a thicker slick to ease mechanical removal and can also enhance burning efficiency.
Catalytic conversion of waste CO2 into value-added fuels and chemicals offers unprecedented opportunities for both environmental protection and economic development. Electrocatalytic CO2 reduction reaction (CO2RR) has garnered significant attention for its ability to efficiently convert CO2 into clean chemical energy under mild conditions. However, the relatively high energy barrier for *COOH intermediate formation often becomes the determining step in CO2RR, significantly limiting reaction efficiency.
Inspired by enzyme catalysis, a team led by Prof. Jiang Hai-Long and Prof. Jiao Long from the University of Science and Technology of China (USTC) of the Chinese Academy of Sciences (CAS) developed a novel strategy to stabilize *COOH intermediate and enhance electrochemical CO2 reduction by constructing and modulating the hydrogen-bonding microenvironment around catalytic sites. Their work is published in the Proceedings of the National Academy of Sciences.
In this work, the team co-grafted catalytically active Co(salen) units and proximal pyridyl-substituted alkyl carboxylic acids (X-PyCn) onto Hf-based MOF nanosheets (MOFNs) via a post decoration route, affording Co&X-PyCn/MOFNs (X = o, m or p representing the ortho-, meta-, or para-position of pyridine N relative to alkyl chain; n = 1 or 3 representing the carbon atom number of alkyl chains) materials.
