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Archive for the ‘sustainability’ category: Page 28

Jul 14, 2024

Google and Microsoft consume more power than some countries

Posted by in categories: energy, sustainability

In 2023, Google and Microsoft each consumed 24 TWh of electricity, surpassing the consumption of over 100 nations, including places like Iceland, Ghana, and Tunisia, according to an analysis by Michael Thomas. While massive energy usage means a substantial environmental impact for these tech giants, it should be noted that Google and Microsoft also generate more money than many countries. Furthermore, companies like Intel, Google, and Microsoft lead renewable energy adoption within the industry.

Detailed analysis reveals that Google’s and Microsoft’s electricity consumption — 24 TWh in 2023 — equals the power consumption of Azerbaijan (a nation of 10.14 million) and is higher than that of several other countries. For instance, Iceland, Ghana, the Dominican Republic, and Tunisia each consumed 19 TWh, while Jordan consumed 20 TWh. Of course, some countries consume more power than Google and Microsoft. For example, Slovakia, a country with 5.4 million inhabitants, consumes 26 TWh.

Jul 14, 2024

Highly efficient and stable solar cells can now be mass produced like printing newspapers

Posted by in categories: solar power, sustainability

Scientists at the City University of Hong Kong (CityUHK) have developed highly efficient, printable and stable perovskite solar cells to achieve carbon neutrality and promote sustainable development.

The new type of solar cells can be mass-produced at a speed comparable to newspaper printing, with a daily output of up to 1,000 . Owing to their flexible, semi-transparent characteristics, they can also be made into light-absorbing glass windows, realizing the concept of “urban solar farms” in cities with many high-rise buildings.

The research is led by the Lee Shau Kee Chair Professor of Materials Science at CityUHK, Professor Alex Jen Kwan-yue, and the results were published in Nature Energy.

Jul 14, 2024

Green Gold: Turning E-Waste Into a Treasure Trove of Rare Earth Metals

Posted by in category: sustainability

Scientists are developing a process inspired by nature that efficiently recovers europium from old fluorescent lamps. The approach could lead to the long-awaited recycling of rare earth metals.

Jul 14, 2024

Investigating the Origins of the Crab Nebula

Posted by in categories: cosmology, sustainability

A team of scientists used NASA’s James Webb Space Telescope to parse the composition of the Crab Nebula, a supernova remnant located 6,500 light-years away in the constellation Taurus. With the telescope’s MIRI (Mid-Infrared Instrument) and NIRCam (Near-Infrared Camera), the team gathered data that is helping to clarify the Crab Nebula’s history.

The Crab Nebula is the result of a core-collapse supernova from the death of a massive star. The supernova explosion itself was seen on Earth in 1,054 CE and was bright enough to view during the daytime. The much fainter remnant observed today is an expanding shell of gas and dust, and outflowing wind powered by a pulsar, a rapidly spinning and highly magnetized neutron star.

The Crab Nebula is also highly unusual. Its atypical composition and very low explosion energy previously have been explained by an electron-capture supernova — a rare type of explosion that arises from a star with a less-evolved core made of oxygen, neon, and magnesium, rather than a more typical iron core.

Jul 12, 2024

Neural networks made of light can make machine learning more sustainable

Posted by in categories: robotics/AI, sustainability

Scientists propose a new way of implementing a neural network with an optical system which could make machine learning more sustainable in the future. The researchers at the Max Planck Institute for the Science of Light have published their new method in Nature Physics, demonstrating a method that is much simpler than previous approaches.

Jul 12, 2024

Scientists unveil prototype spacesuit system that recycles urine as drinking water

Posted by in categories: space, sustainability

Researchers at Cornell University have designed a novel in-suit urine collection and filtration system, or “Dune” system,” to “promote astronaut wellbeing.”

Jul 12, 2024

Discovery of Carbon Stock in 20-Year-Old Mangrove Plantations

Posted by in categories: climatology, sustainability

“Periodic and regular monitoring of mangroves can provide useful data on survival and success of restoration efforts and can help devise adaptive management strategies as and when needed,” said Dr. Rupesh Bhomia.


What is the capacity of carbon storage for planted mangroves? This is what a recent study published in Science Advances hopes to address as a team of international researchers led by the USDA Forest Service investigated the length of time that planted mangroves can store carbon, as such insights could provide steps to replenish mangrove populations throughout the world since these populations have seen a 35 percent decrease over the past 50 years. This study holds the potential to help mitigate the impacts of climate change by naturally storing carbon and keeping it from worsening climate change across the globe.

Image of mangrove nurseries in Maputo, Mozambique. (Credit: Vilma Machava, U.S. Forest Service International Programs)

Continue reading “Discovery of Carbon Stock in 20-Year-Old Mangrove Plantations” »

Jul 11, 2024

Plastic fibres found in tap water around the world, study reveals

Posted by in categories: particle physics, sustainability

Exclusive: Tests show billions of people globally are drinking water contaminated by plastic particles, with 83% of samples found to be polluted.

Jul 11, 2024

Synthetic Biology is in Fashion

Posted by in categories: bioengineering, biological, food, internet, military, sustainability

Spider spidroin revives the silken splendor.

In their quest to make silk powerful again, not by status but rather by thread strength, scientists turned to an arachnoid. Dragline silk, the thread by which the spider hangs itself from the web, is one of the strongest fibers; its tensile strength—a measure of how much a polymer deforms when strained—is almost thrice that of silkworm silk.2

Beyond durable fashion garments, tough silk fibers are coveted in parachutes, military protective gear, and automobile safety belts, among other applications, so scientists are keen to pull on these threads. While traditional silk production relies on sericulture, arachnophobes can relax: spider farms are not a thing.

Jul 10, 2024

Mapping the surfaces of MXenes, atom by atom, reveals new potential for the 2D materials

Posted by in categories: chemistry, mapping, particle physics, sustainability

In the decade since their discovery at Drexel University, the family of two-dimensional materials called MXenes has shown a great deal of promise for applications ranging from water desalination and energy storage to electromagnetic shielding and telecommunications, among others. While researchers have long speculated about the genesis of their versatility, a recent study led by Drexel and the University of California, Los Angeles, has provided the first clear look at the surface chemical structure foundational to MXenes’ capabilities.

Using advanced imaging techniques, known as scanning tunneling microscopy (STM) and scanning tunneling spectroscopy (STS), the team, which also includes researchers from California State University Northridge, and Lawrence Berkeley National Laboratory, mapped the electrochemical surface topography of the titanium carbide MXene — the most-studied and widely used member of the family.

Their findings, published in the 5th anniversary issue of the Cell Press journal Matter (“Atomic-scale investigations of Ti 3 C 2 Tx MXene surfaces”), will help to explain the range of properties exhibited by members of the MXene family and allow researchers to tailor new materials for specific applications.

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