World’s biggest river island could be India’s first carbon-neutral sector

March 23, 2017 by  
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Pollution has plagued India recently; a 2017 report showed people are more likely to die from air pollution not in China, as might be your first guess, but in India. But one area of the country could receive a breath of fresh air. Majuli, which is the largest river island in the world, could become the country’s first carbon-neutral district. Majuli, which is found in India’s Assam state, is home to plentiful biodiversity and the neo-Vaishnavite culture, which according to The Guardian is a monotheistic branch of Hinduism. But the river island is in trouble: monsoons and the river absorb homes as land is disappearing rapidly. In the middle of the 19th century, the river island was around 463 square miles, but in 2015 it was just around 154 square miles, and some research says Majuli could be gone in two decades. Related: New Delhi has the worst air pollution of any city on earth “Majuli is facing an existential crisis and therefore initiatives like designating [it] a carbon neutral district and biodiversity heritage site are [the] needs of the hour to preserve its rich heritage and legacy,” said Assam Chief Minister Sarbananda Sonowal. The government aims to make the river island the country’s first carbon-neutral sector by 2020 . Sonowal aims to raise awareness among locals as the area works to become free of pollution. He suggested parents could give a sapling to their children for their birthdays, and plant trees around their homes. He also started an electronic registry to scrutinize the climate impact of any projects proposed for Majuli. A project called the Sustainable Action for Climate Resilient Development, started late last year, will ensure the river island’s infrastructure is low carbon . According to Sonowal’s office as quoted by The Times of India, “Further declaration of Majuli as a Biodiversity Heritage Site, the first in the state, enforces the rich biological biodiversity in the wild, cultivated areas of the island and cultural heritage of Majuli.” Via India Times , The Times of India , and The Guardian Images via Wikimedia Commons ( 1 , 2 )

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World’s biggest river island could be India’s first carbon-neutral sector

Solar-powered skin could help prosthetics imbue sense of touch

March 23, 2017 by  
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Engineers from the University of Glasgow have developed a synthetic skin that could help amputees regain their sense of touch. Clad in graphene, a form of graphite just one atom thick yet tougher than steel, the “electronic skin” even uses photovoltaic cells to harvest power from the sun. “This could allow the creation of an entirely energy-autonomous prosthetic limb,” said Ravinder Dahiya , head of the School of Engineering’s Bendable Electronics and Sensing Technologies group and the author of a paper on the subject in the current issue of Advanced Functional Materials . Graphene and solar cells are ideal bedfellows because of the former’s unique physical properties, Dahiya said. The material’s optical transparency, for instance, allows 98 percent of the light that hits its surface to pass through. Graphene is also electrically conductive, which means it can channel power to sensors that measure attributes like temperature, pressure, and texture. “Those measurements mean the prosthetic hand is capable of performing challenging tasks like properly gripping soft materials, which other prosthetics can struggle with,” Dahiya said. Related: Thought-controlled robotic arm returns the sense of touch to amputees Because the new skin requires only 20 nanowatts of power per square centimeter, even the lowest-rated photovoltaic cell on the market will suffice. The energy generated by the skin’s cells cannot be stored at present, but the researchers are exploring ways of diverting any unused energy into batteries that can be drawn from at a later time. Beyond prosthetics, the breakthrough could fuel further advances in robotics—a boon for an increasingly automated world. “Skin capable of touch sensitivity also opens the possibility of creating robots capable of making better decisions about human safety,” Dahiya said. “A robot working on a construction line, for example, is much less likely to accidentally injure a human if it can feel that a person has unexpectedly entered their area of movement and stop before an injury can occur.” + University of Glasgow

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Solar-powered skin could help prosthetics imbue sense of touch

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