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Archive for the ‘sustainability’ category: Page 492

Apr 30, 2018

New materials for sustainable, low-cost batteries

Posted by in categories: energy, sustainability

A new conductor material and a new electrode material could pave the way for inexpensive batteries and therefore the large-scale storage of renewable energy.

The energy transition depends on technologies that allow the inexpensive temporary storage of electricity from renewable sources. A promising new candidate is aluminium batteries, which are made from cheap and abundant raw .

Scientists from ETH Zurich and Empa, led by Maksym Kovalenko, Professor of Functional Inorganic Materials, are among those involved in researching and developing batteries of this kind. The researchers have now identified two new materials that could bring about key advances in the development of aluminium batteries. The first is a corrosion-resistant material for the conductive parts of the battery; the second is a novel material for the battery’s positive pole that can be adapted to a wide range of technical requirements.

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Apr 29, 2018

How Europe’s ‘energy citizens’ are leading the way to 100% renewable power

Posted by in categories: energy, sustainability

Germany and Denmark are setting the standard.


Europe already has the technology to create a 100% renewable energy system, but communities will need to join forces to achieve this ambitious goal.

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Apr 28, 2018

Transparent eel-like soft robot can swim silently underwater

Posted by in categories: cyborgs, drones, robotics/AI, satellites, solar power, sustainability

Apparently needs a lot of work before it can actually operate like a eel/snake. But, i’d wrap this up in skin so it could look like a snake/eel. Give it solar power skin so it could recharge its own batteries; maybe try to use that system that was supposed to be able to eat organic matter to convert into power. Then, put a bunch of sensors on it, and HD cameras for eyes, and rig it so it could transmit to satellites. And you have a pretty impressive drone that can operate in any body of water and on land close to water.


An innovative, eel-like robot developed by engineers and marine biologists at the University of California can swim silently in salt water without an electric motor. Instead, the robot uses artificial muscles filled with water to propel itself. The foot-long robot, which is connected to an electronics board that remains on the surface, is also virtually transparent.

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Apr 26, 2018

Many low-lying atoll islands could be uninhabitable

Posted by in categories: climatology, habitats, sustainability

Sea-level rise and wave-driven flooding will negatively impact freshwater resources on many low-lying atoll islands in such a way that many could be uninhabitable in just a few decades. According to a new study published in Science Advances, scientists found that such flooding not only will impact terrestrial infrastructure and habitats, but, more importantly, it will also make the limited freshwater resources non-potable and, therefore, directly threaten the sustainability of human populations.

Most of the world’s atolls are in the Pacific and Indian oceans. The scientists focused on Roi-Namur Island on Kwajalein Atoll in the Republic of the Marshall Islands for their site study from November 2013 to May 2015. The Republic of the Marshall Islands has more than 1,100 low-lying on 29 atolls, is home for numerous island nations and hundreds of thousands of people.

Scientists from the U.S. Geological Survey, Deltares, National Oceanic and Atmospheric Administration, and the University of Hawai?i at Mānoa used a variety of climate-change scenarios to project the impact of sea-level rise and wave-driven flooding on atoll infrastructure and freshwater availability. The approach and findings in this study can serve as a proxy for atolls around the world, most of which have a similar morphology and structure, including, on average, even lower land elevations.

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Apr 26, 2018

Balancing nuclear and renewable energy

Posted by in categories: economics, nuclear energy, solar power, sustainability

Nuclear power plants typically run either at full capacity or not at all. Yet the plants have the technical ability to adjust to the changing demand for power and thus better accommodate sources of renewable energy such as wind or solar power.

Researchers from the U.S. Department of Energy’s (DOE) Argonne National Laboratory and the Massachusetts Institute of Technology recently explored the benefits of doing just that. If nuclear generated in a more flexible manner, the researchers say, the plants could lower electricity costs for consumers, enable the use of more , improve the economics of nuclear and help reduce greenhouse gas emissions.

The team explored technical constraints on flexible operations at and introduced a new way to model how those challenges affect how power systems operate. “Flexible nuclear power operations are a ‘win-win-win,’ lowering power system operating costs, increasing revenues for nuclear plant owners and significantly reducing curtailment of renewable energy,” wrote the team in an Applied Energy article published online on April 24.

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Apr 24, 2018

Organic solar cells reach record efficiency, benchmark for commercialization

Posted by in categories: solar power, sustainability

In an advance that makes a more flexible, inexpensive type of solar cell commercially viable, University of Michigan researchers have demonstrated organic solar cells that can achieve 15 percent efficiency.

This level of is in the range of many solar panels, or photovoltaics, currently on the market.

“Organic photovoltaics can potentially cut way down on the total solar energy system cost, making solar a truly ubiquitous clean energy source,” said Stephen Forrest, the Peter A. Franken Distinguished University Professor of Engineering and Paul Goebel Professor of Engineering, who led the work.

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Apr 24, 2018

Organic agriculture is going mainstream, but not the way you think it is

Posted by in categories: food, sustainability

One of the biggest knocks against the organics movement is that it has begun to ape conventional agriculture, adopting the latter’s monocultures, reliance on purchased inputs and industrial processes.

“Big Organics” is often derided by advocates of sustainable agriculture. The American food authors Michael Pollan and Julie Guthman, for example, argue that as organic agriculture has scaled up and gone mainstream it has lost its commitment to building an alternative system for providing food, instead “replicating what it set out to oppose.”

New research, however, suggests that the relationship between organic and conventional farming is more complex. The flow of influence is starting to reverse course.

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Apr 22, 2018

How robots are reshaping one of the dirtiest, most dangerous jobs

Posted by in categories: employment, robotics/AI, sustainability

Maybe these giant bots will stop our landfills from overflowing!


Garbage-sorting robots featuring artificial intelligence and fast-moving arms are now on the job at many recycling centers across the U.S. and around the world.

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Apr 20, 2018

Apple’s recycling robot disassembles 200 iPhones an hour

Posted by in categories: mobile phones, robotics/AI, sustainability

About a year ago, Apple made the bold proclamation that it was zeroing in on a future where iPhones and MacBooks were created wholly of recycled materials. It was, and still is, an ambitious thought. In a technologically-charged world, many forget that nearly 100 percent of e-waste is recyclable. Apple didn’t.

Named “Daisy,” Apple’s new robot builds on its previous iteration, Liam, which Apple used to disassemble unneeded iPhones in an attempt to scrap or reuse the materials. Like her predecessor, Daisy can successfully salvage a bulk of the material needed to create brand new iPhones. All told, the robot is capable of extracting parts from nine types of iPhone, and for every 100,000 devices it manages to recover 1,900 kg (4,188 pounds) of aluminum, 770 kg of cobalt, 710 kg of copper, and 11 kg of rare earth elements — which also happen to be some of the hardest and environmentally un-friendly materials required to build the devices.

In its latest environmental progress report, Apple noted:

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Apr 20, 2018

New research could literally squeeze more power out of solar cells

Posted by in categories: physics, solar power, sustainability

Physicists at the University of Warwick have today, Thursday 19th April 2018, published new research in the fournal Science today 19th April 2018 (via the Journal’s First Release pages) that could literally squeeze more power out of solar cells by physically deforming each of the crystals in the semiconductors used by photovoltaic cells.

The paper entitled the “Flexo-Photovoltaic Effect” was written by Professor Marin Alexe, Ming-Min Yang, and Dong Jik Kim who are all based in the University of Warwick’s Department of Physics.

The Warwick researchers looked at the physical constraints on the current design of most commercial solar cells which place an absolute limit on their efficiency. Most commercial solar cells are formed of two layers creating at their boundary a junction between two kinds of semiconductors, p-type with positive charge carriers (holes which can be filled by electrons) and n-type with negative charge carriers (electrons).

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