86% of teens in study have traces of BPA in their bodies

February 9, 2018 by  
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A vast majority of teenagers in a recent study had traces of Bisphenol A ( BPA ) inside of their bodies, according to the University of Exeter . They tested 94 17 to 19-year-olds and found BPA in 86 percent of them. The researchers are calling for better packaging labels to allow people to pick BPA-free products. The University of Exeter described BPA as an endocrine-disrupting industrial chemical , which has been in use since the 1960s to create some kinds of plastic . Prior research from the Exeter team discovered BPA can cause “changes to the expression of oestrogen-responsive genes, and the regulation of hormones.” And this recent study, published online earlier this month in BMJ Open , reveals a large number of the teens tested had measurable levels of BPA in their urine: an average of 1.9 nanograms per milliliter. Related: New study shows BPA-free plastics may not be safer The teens were tested before and after they took part in the trial – a week-long effort adhering to guidelines to try and cut BPA exposure in their diets. They worked to avoid BPA-containing plastic packaging, utilize glass or stainless steel containers for drinks and food, and microwave food in glass or ceramic containers. The study found overall, these efforts seemed to do little to help: most teens didn’t see a decrease in exposure. Only some of the teenagers with the highest BPA levels saw some reduction. The industrial chemical seems to be so ubiquitous even working to lower exposure doesn’t have a measurable impact overall, according to the university. University of Exeter associate professor of molecular genetics Lorna Harries said in a statement, “Our study shows that we currently do not have much of a choice about being exposed to BPA. We believe that much better labeling of products containing BPA is needed so people can make an informed choice.” + University of Exeter + BMJ Open Images via Depositphotos and Vinicius Amano on Unsplash

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86% of teens in study have traces of BPA in their bodies

8 teenage inventions that could save the world

January 23, 2017 by  
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Sometimes the brightest ideas come in young packages. Teenagers from around the world demonstrate you don’t need a high school diploma to come up with a life-changing invention . From $13 germ-killing door handles to Braille printers, check out these eight teenage inventions that revolutionize the way we view energy , food, and, of course, the oceans . 14-year-old designs pedal-powered washing machine When assigned with laundry duty after her mother got sick, Remya Jose, a 14-year-old girl from India , designed an ingenious pedal-powered washing machine to save the time of doing laundry by hand in a nearby river. Jose made her clever washing machine with recycled bicycle components, creating an appliance that could greatly assist families who lack access to electricity. Related: 13-year-old Maanasa Mendu invents groundbreaking clean energy device that costs just $5 16-year-olds discover way to increase crop yields for Combating the Global Food Crisis project Garden-loving teenagers Ciara Judge, Émer Hickey, and Sophie Healy-Thow of Ireland won the Google Science Fair 2014 with their Combating the Global Food Crisis project. The 16-year-olds paired a bacteria often found in symbiotic relationships with legumes with crops it doesn’t typically associate with, namely oats and barley. Crops that tested their unique pairing were wildly successful, germinating in about half the time and producing a 74 percent greater drymass yield. Increasing crop yields is vital as the global population grows, and discoveries like this one could greatly impact the way we combat food poverty . 19-year-old invents Ocean Cleanup Array For several years now, Inhabitat has been covering the efforts of The Ocean Cleanup CEO Boyan Slat of the Netherlands , who at 19 years old invented an Ocean Cleanup Array , and we’re continually impressed by his persistence. The Ocean Cleanup recently completed their first aerial reconnaissance mission of the Great Pacific Garbage Patch . The results weren’t pretty – 1,000 large plastic pieces spotted in two hours – but there’s still hope to clean up the mess we’ve made. The Ocean Cleanup won the Katerva Award in 2016 , and feasibility studies indicate one 63-mile array could “remove 42 percent of the Great Pacific garbage patch in only 10 years.” 12-year-old builds inexpensive, working Braille printer 12-year-old Shubham Banerjee of California utilized a Lego Mindstorms EV3 kit and about $5 of hardware from Home Depot to design an innovative Braille printer , the Braigo v1.0, that cost way less than similar devices. Around 285 million people are visually impaired worldwide, according to World Health Organization data, but as Braille printers cost over $2,000 when Banerjee invented his device, his disruptive technology held the potential to change how the blind communicate. He went on to start a company, Braigo Labs , and about three years later, has released an app and web platform and continues to develop his groundbreaking printer (and he’s still in high school.) 17-year-old creates a device that can purify water and produce clean energy simultaneously Millions of people around the world live without electricity or clean water , and 17-year-old Cynthia Sin Nga Lam of Australia decided to tackle both issues at once with her portable H2Pro device. The H2Pro unit harnesses photocatalysis, or using light to speed up a chemical reaction, to sterilize water. As a side bonus, the process also yields hydrogen , which Lam said could be used to produce electricity. 17-year-old designs human waste bioreactor to turn human poo into clean energy When Kenya ‘s Maseno School opened up new dormitories for over 700 students in 2013, the area around the students’ home often smelled because of pit latrines and a defective sewage system, which also polluted local freshwater. High schooler Leroy Mwasaru and four friends came up with a solution: a human waste bioreactor that could transform waste into a clean cooking fuel for the kitchen, which had been using firewood. Today, Mwasaru is the founder of Greenpact , a group aiming to provide biogas solutions to over six million Kenyans who lack access to adequate sanitation and renewable energy . 17-year-old and 18-year-old design $13 germ-killing door handle 17-year-old Sun Ming (Simon) Wong and 18-year-old King Pong (Michael) Li of Hong Kong knew bacteria spreads via handles on doors or shopping carts touched by hundreds of people daily. So they hunted for a material that could kill that bacteria and found an answer in titanium oxide. Instead of simply coating a handle in titanium oxide, though, they added an LED light into a bracket holding the handle to truly activate the compound, which can then annihilate 99.8 percent of germs . Even better, the device only costs around $13, meaning it could be accessible for more people worldwide. 16-year-old utilizes ingredients found in pencils and sunscreen to create pollution-cleansing coating Sunscreen and pencils might not be the first two items you’d go to for answers to clean up pollution , but 16-year-old Samuel Burrow of England utilized two ingredients found in those common items to create a “paint-like coating” that has the power to break down pollutants with the help of light. He mixed titanium dioxide with graphene oxide for a concoction with not one, but several applications, in addition to a surface paint. As a sponge, Burrow’s mixture can purify water, and when combined with sand, it has the potential to filter heavy metals out of water. Just imagine how clean the world could be if all buildings were painted with Burrow’s marvelous mix. Images via Brit + Co ; Ciara Judge, Émer Hickey and Sophie Healy-Thow on Google+ ; The Ocean Cleanup ; Shubham Banerjee ; Google Science Fair ; Innovate Kenya ; Student Society for Science ; and screenshot

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8 teenage inventions that could save the world

15-Year-Old Develops Hollow Flashlight Powered by Body Heat

July 2, 2013 by  
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From a sleeping bag that charges your gadget s to entire buildings that use body heat to run heating systems , scientists are harvesting the heat emitted by humans as a source of renewable energy. But the latest development in thermoelectric energy generation doesn’t come from a high-tech lab at MIT; it comes from Ann Makosinski, a 15-year-old Canadian girl who developed a flashlight that is powered by the heat from a human hand . With the aim of reducing the number of single-use batteries that are thrown in landfills, Makosinski developed the innovative flashlight, which can be developed cheaply and could be deployed to populations that can’t afford electricity to light their homes. Read the rest of 15-Year-Old Develops Hollow Flashlight Powered by Body Heat Permalink | Add to del.icio.us | digg Post tags: 15 year old , Ann Makosinski , Google , Google Science Fair , Hollow Flashlight , human heat , human-powered flashlight , renewable energy , science fair , teenager , thermal energy , thermoelectric flashlight        

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15-Year-Old Develops Hollow Flashlight Powered by Body Heat

DALE: Brilliant Solar-Powered Micro Home is Set on Rails for Mobility

July 2, 2013 by  
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Read the rest of DALE: Brilliant Solar-Powered Micro Home is Set on Rails for Mobility Permalink | Add to del.icio.us | digg Post tags: architecture competition , CalTech , clean tech , collegiate design competition , eco design , green design , prefabricated design , Sci-Arc , Solar Decathlon 2014 , Solar Power , sustainable design        

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DALE: Brilliant Solar-Powered Micro Home is Set on Rails for Mobility

Holey Poley: Transformer Daybed by Clinton Stewart

September 7, 2011 by  
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Image credit Clinton Stewart Clinton Stewart , an Australian design student based in Copenhagen, has designed a very clever transformer daybed that is essentially made of cushions pinned together with long poles. He calls it a “minimalistic modular daybed embracing naive simplicity and conceptual functionality.” Shown above is what might be called the teenager date configuration, with the cushions firmly pinned down the middle of the sofa. … Read the full story on TreeHugger

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Holey Poley: Transformer Daybed by Clinton Stewart

Arctic Sea Ice Declines To Second Lowest Amount on Record in August

September 7, 2011 by  
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photo: NOAA Photo Library / CC BY New data from the National Snow and Ice Data Center shows that extent of Arctic sea ice in August melted off to the second lowest amount for the month on record. Throughout the month sea ice was near levels witnessed in 2007, when the yearly record low was set. … Read the full story on TreeHugger

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Arctic Sea Ice Declines To Second Lowest Amount on Record in August

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