Removing indoor pollution

first_imgWhile studying climate change in the rural Himalayas, Catlin Powers was asked an eye-opening question by one local family: Why are all of these scientists coming here to study outdoor air pollution when indoor air pollution is so much worse? A Harvard School of Public Health (HSPH) graduate and current Ph.D. candidate in environmental health, Powers is the co-founder of One Earth Designs, a company that creates products that enable people to improve the quality of their lives by wisely using energy resources. She is one of the creative forces behind SolSource, a revolutionary, sun-powered grill designed specifically to answer that family’s question.Powers began her journey by measuring the indoor air quality inside the Himalayan home where the question was posed, and found that it was 10 times more polluted than the outdoor air in Beijing. Subsequently, she found that more than half a million people each year die in China from the toxic smoke coming from household stoves used for cooking and heating.Spurred by these revelations, Powers began working directly with rural communities to explore energy solutions and alternate fuel sources for cooking in their homes. The result was SolSource, a high-performance, low-maintenance, portable, durable, safe, and fuel- and emission-free solar cooker. SolSource harnesses energy from the sun, which is ample on the Himalayan plateau, and uses it to grill, steam, bake, boil, or fry. Cooking with SolSource saves families time and money, reduces their exposure to harmful stove pollution, and helps conserve precious resources. One Earth Designs recently ended a successful Kickstarter campaign to help fund production of SolSource, as well as to explore a cost-offsetting model for developing nations. The campaign ended with 330 percent of its goal funded. During a recent question-and-answer session through the Office for Sustainability (OFS), Powers talked about her work.OFS: What are you most excited about for the future and for the potential SolSource holds in Asia and in the rest of the world?POWERS: Achieving a 100 percent renewable energy future for all — SolSource is a solar cooker, but it harnesses a tremendous amount of energy beyond what is needed for cooking. So we are working on harnessing that energy for electricity, household heating, water purification, and waste processing. Today, you can eat healthy, delicious solar [-cooked] food. Tomorrow, your solar grill could be powering your house, your car, and your life.With SolSource, we hope to continue to help under-consuming families leapfrog into a highly aspirational solar energy future, as well as to help over-consuming families enjoy life just as much while consuming fewer nonrenewable resources.Given all that is happening with our climate, energy seems like a great place to start. One hour of sunlight provides enough energy to supply all human needs for an entire year. The potential is huge if we could only enable more people to harness it.OFS: What’s the one thing you hope people take away from your product?POWERS: Everyone around the world essentially wants and needs the same basic things, so let’s design an equitable human lifestyle that gives us all a brighter future here on Earth. That future is going to require products and systems that make it fun and convenient to live using fewer finite resources and that close the loop on our waste stream.OFS: What are the challenges in adopting and implementing small-scale renewable energy sources in the developing world?POWERS: People often talk about the last-mile challenge from a logistics perspective, but we’ve actually found that people are willing to travel long distances to access SolSource in town centers and other regional hubs. Our bigger challenge is price constraint. For example, we spoke with families in northern Myanmar who wanted SolSource, but who had never owned a product that cost more than 16 U.S. dollars, and they were taking out loans to afford even those.Some people might say we should just use cheaper materials. But we realized early on that it is often the most price-constrained families that need the highest-quality products. These families tend to live in places with harsh environmental conditions, sometimes amidst warfare, and often with the need for frequent migration. Performance and durability are crucial.OFS: How did your experiences and studies at Harvard influence or contribute to SolSource?POWERS: My experience at Harvard prepared and allowed me to understand the challenge at hand, and how to measure the effectiveness of the solutions. We developed 54 prototypes of solar cookers before we developed SolSource. We trained citizen scientists from inside the villages to monitor its impact on pollution and cost savings, and we purchased state-of-the-art monitoring equipment to support this work.Much of this was funded through grants and fellowships from the Environmental Protection Agency and the National Science Foundation, which were hosted by Harvard. I also received a scholarship from Harvard to finish my graduate studies, and would not have been able to complete the work without this support.So much of the guidance I’ve received comes directly from my advisory committee at HSPH. Jack Spengler, James Butler, Majid Ezzati, and Christopher Barr were invaluable resources in the evaluation of SolSource, as well as in my personal development.OFS: Do you have a few tips/advice for aspiring “green-preneurs”?POWERS: I always love trading learning with other doers out there. Here are some of the ones that have been most important for me over time.1.  If you have co-founders, your relationship with them means everything about the success or failure of your company. Fighting is fine and natural, but you have to respect each other and know how to communicate effectively.2.  Take the time to stop and think about the bigger context of your work, and make sure that you are still building toward the world you want to live in in the future.3.  Remember to sleep.last_img read more

QPR linked with Turkey star İnan

first_imgQPR are interested in Galatasaray midfielder Selçuk İnan, according to Turkish media reports.Everton and Leicester City have also been linked with the 29-year-old Turkey international, who signed a long-term contract at his current club during the summer.Rangers, it is claimed, would like to sign him on a six-month deal when the transfer window reopens in January.Meanwhile, the Express claim Arsenal are hoping to push through a  cut-price move for Stephan Lichsteiner in an attempt to beat Chelsea to the signing of the Juventus defender.The Blues are said to be keen on Switzerland international Lichsteiner, 30, as are Real Madrid.His contract expires in the summer and there has been speculation that he could move during the January transfer window.For more transfer speculation, including QPR being linked with a loan move for former Fulham star Clint Dempsey, see Monday morning’s Paper Talk.Follow West London Sport on TwitterFind us on Facebooklast_img read more

The Perfect Wall, Roof, and Slab — Building Science Podcast

first_imgRELATED MULTIMEDIA Video: Superinsulating a Home with Rigid FoamA Home Energy AuditGreen Builder Won’t Compromise on the Envelope GREEN PRODUCT GUIDE Insulation Blown Insulation Batt Insulation Board Insulation Foam InsulationThe most important factors are often not considered in design, construction, and regulation; and the unimportant ones tend to have an overly enthusiastic and detailed amount of specs associated with them. The Perfect Wall has all of the structure to the interior and all of the control functions to the exterior. Let’s start at the outside of the perfect wall with the cladding. Cladding provides three functions: 1. Aesthetics, 2. Protection from UV light 3. Physical, mechanical protection of the other control layers. Aesthetics matter because people don’t take care of ugly things. Ugliness is not sustainable. The longer something is around, the more resources it consumes, so the more resource efficient it is, and the fewer resources it uses over its lifetime. We want a beautiful building that lasts a long time and is ultra-efficient. Claddings should be completely open — we want air circulation behind the cladding system. The more air circulation, the better the system works. Sealants are purely aesthetic, they’re not functional. If the sealants fail, the primary air, thermal, vapor and rain control elements are not affected. If we take the perfect wall and lean it, we get the perfect roof. From the inside to the outside, the control layers are:StructureVapor control membraneInsulationCladdingSome of the old-timers will recognize this type of roof as an IRMA — Inverted Roof Membrane system. If you replace the ballast with dirt, grass, and a goat, you would get a green roof. (That was a joke.) Flip the roof and you get the perfect slab:Dirt and stonesInsulationVaporConcrete (structure)The physics of a foundation, wall and roof are the same (this is an Ah-Ha! moment). When we look at a section of the perfect roof, wall, and slab, and we get the other Ah-Ha! moment — the important parts are the corners. You have to connect the rain control element of the foundation to the rain control element of the walls, the air control element of the foundation to the air control element of the walls, the vapor control element of the foundation to the vapor control element of the walls, the thermal control element of the foundation to the thermal control element of the walls… Pretty fundamental stuff. Most failures occur where roofs connect to walls _Tip: Buy multi-colored pens_ Whenever we do design reviews in our office, we tell the youngsters to take a colored pen and trace the rain control layer around the building enclosure. If the pen has to leave the paper, they’ve identified a discontinuity that needs to be addressed. Use a different colored pen for each of the control layers. Whenever the pen leaves the paper, you’ve identified a flaw. It’s as simple as that. We find that the flaws are concentrated at the connecting elements. Windows complicate the perfect wall Now these are pretty easy, but it gets complicated. In the real world, someone pokes a hole in the building and we call that a window. Windows have to do everything that a wall does, and more. It has to control water, air, heat, and vapor; you want to be able to see through it, and every so often someone is going to want to open it too. Windows can actually do all of that stuff, which is pretty amazing. No wonder they’re so expensive. All we have to do is connect the rain control element of the window to the rain control element of the wall, the air control element of the window to the air control element of the wall, the vapor control element of the window to the vapor control element of the wall, the thermal control element of the window to the thermal control element of the wall. The reason we’ve been having so much trouble with window-to-wall connections is because we’ve been relying on one person to do all of this: His name is “By-Others.” Mr. By-Others shows up on all of these specs and you have to make sure he is not going to be responsible for all of these connections. Someone has to be responsible. The window industry doesn’t do us any favors either — they don’t tell us in their window system which part of these windows systems are responsible for controlling water, air, vapor and heat. In the absence of guidance, we have to assume that the innermost component of the window is where all four of those functions collapse. So we wrap the window openings and make the connection at the back — so that if the window should fail, the water will go to the outside. That’s how you design a building: water continuity, air continuity, vapor continuity, thermal continuity. It can’t be that simple, right? Well, the answer is, “Yes it is.” Podcasts: Podcast:Air Barriers vs. Vapor BarriersHow Heat Moves Through HomesEfflorescence = Water Damage Insulation Retrofits on Old Masonry BuildingsHow Air Affects a House RELATED ARTICLES Insulation Overview Insulating Roofs, Walls, and Floors Installing Fiberglass Right” Insulation Choices Can Foam Insulation Be Too Thick? The Global Warming Impact of Insulation CONSTRUCTION DETAILS Building Plans for the Energy Star Thermal Bypass Checklist Energy Star checklist details Insulating behind tub with rigid foam Air sealing behind tub Foundation/Floor Intersections Roof/Wall Intersections Wall/Floor Intersections _This podcast series is excerpted from a two-day class called_ Building Science Fundamentals _with Drs. Joe Lstiburek and John Straube of Building Science Corporation. For information on attending a live class, go to BuildingScienceseminars.com This week Dr. Joe talks about enclosure design principles of energy efficient buildings_ _______________________________Let’s start with smart things The building enclosure has four functions. In order of importance, they are: 1. Rain control 2. Air control 3. Vapor control 4. Thermal control Thermal control is the easiest to specify, calculate, and measure, so that’s what codes focus on. Codes typically ignore the most important layers because they’re the most difficult to specify. The vapor control layer is easier to specify than the air control layer, so codes obsess over specifying the vapor control layer and ignoring the air control layer. Video:last_img read more

WATCH: Kobe Bryant recites retirement poem with composer John Williams

first_imgLATEST STORIES View comments His short but sweet recital was met with a standing ovation from the pleased audience.Meanwhile, the 39-year-old Bryant expressed his delight upon performing and sharing the stage with one of music’s most recognizable names.“Never thought I’d be on stage w/ the great JOHN WILLIAMS @HollywoodBowl to perform the #DearBasketball animated short. Thank u LA #mindblown,” he wrote. Never thought I’d be on stage w/ the great JOHN WILLIAMS @HollywoodBowl to perform the #DearBasketball animated short. Thank u LA #mindblown pic.twitter.com/NryTKovJuU— Kobe Bryant (@kobebryant) September 2, 2017ADVERTISEMENT Trump signs bills in support of Hong Kong protesters MOST READ NATO’s aging eye in the sky to get a last overhaul Celebrity chef Gary Rhodes dies at 59 with wife by his side Ethel Booba on hotel’s clarification that ‘kikiam’ is ‘chicken sausage’: ‘Kung di pa pansinin, baka isipin nila ok lang’ Robredo should’ve resigned as drug czar after lack of trust issue – Panelo Don’t miss out on the latest news and information. Celebrity chef Gary Rhodes dies at 59 with wife by his side Aside from being one of the most spectacular basketball players to ever lace up a pair of sneakers, Kobe Bryant is a man of many talents.ADVERTISEMENT Since his retirement from the game last year, fans have learned more about his many hidden passions aside from putting the ball in a hoop—including his gift for poetry.The Los Angeles Lakers legend recited his ”Dear Basketball” poem, alongside legendary conductor John Williams and the Los Angeles Philharmonic Orchestra at the Hollywood Bowl over the weekend.FEATURED STORIESSPORTSSEA Games: Biñan football stadium stands out in preparedness, completionSPORTSPrivate companies step in to help SEA Games hostingSPORTSBoxers Pacquiao, Petecio torchbearers for SEA Games openingThe one-time league MVP penned the heartfelt piece on The Player’s Tribune in 2015-2016 season, to announce that he’ll be walking away from the sport.Bryant’s emotional words echoed throughout the packed hall, as an animated short of his storied career played on a big screen overlooking the stage. Lyceum stays unbeaten, cruises to 10th straight win Hotel says PH coach apologized for ‘kikiam for breakfast’ claim Sports Related Videospowered by AdSparcRead Next Robredo: True leaders perform well despite having ‘uninspiring’ boss PLAY LIST 02:49Robredo: True leaders perform well despite having ‘uninspiring’ boss02:42PH underwater hockey team aims to make waves in SEA Games01:44Philippines marks anniversary of massacre with calls for justice01:19Fire erupts in Barangay Tatalon in Quezon City01:07Trump talks impeachment while meeting NCAA athletes02:49World-class track facilities installed at NCC for SEA Games Williams, meanwhile, is responsible for a slew of the most popular music in cinema history, including music for classics like “Jaws”, “Jurassic Park,” “E.T. the Extra-Terrestial” and the iconic “Imperial March” from the “Star Wars” franchise. /raRELATED STORY:Nike responds to Kobe Bryant’s letter to game of basketball Lacson: SEA Games fund put in foundation like ‘Napoles case’last_img read more

No security compromise at Wankhede: Shetty

first_imgSeeking to allay fears expressed by the city’s fire department about the safety norms at the Wankhede Stadium, World Cup tournament director Ratnakar Shetty on Sunday said security and safety of people would not be compromised while staging matches at the venue. “When we build a stadium, we take care of each and every person who will come to the stadium. And there would be no compromises in anything required by the government or any agencies,” Shetty told reporters who were taken around the renovated stadium. “Every permission that is required will be obtained and without that you can not have a stadium. You can not organise a match. But getting a permission is a procedure. It does not happen that you go to a counter and say now give me a NOC. There is a procedure which is followed and permissions are taken in a sequence. “Rest assured, all permissions will be in hand, all things required from the fire department and the NOC (no objection certificate). What is required is the compliance at the new areas like the basement at the north stand which will house the control room for the television and the media conference room,” he said. Expressing displeasure at the non-compliance of fire safety norms at the revamped Wankhede stadium, city’s Fire Brigade department had last week said that it would seek a reply from the Mumbai Cricket Association (MCA) in this regard.- With PTI inputslast_img read more

10 months agoLeicester boss Puel to bench Vardy for Man City Cup clash

first_imgAbout the authorChris BeattieShare the loveHave your say Leicester boss Puel to bench Vardy for Man City Cup clashby Chris Beattie10 months agoSend to a friendShare the loveLeicester City boss Claude Puel is set to omit Jamie Vardy from his line-up for their Carabao Cup quarterfinal tie with Mannchester City.Puel is planning to prioritise Saturday’s Premier League match at Chelsea by making a number of changes to his line-up on Tuesday, including starting Vardy on the bench, even though Leicester are three games from Wembley.Vardy, Leicester’s joint-top scorer with five Premier League goals, has been managing a groin problem but returned to fitness for Saturday’s match at Crystal Palace where he played the full 90 minutes against expectations, says the Daily Mail. Puel has been advised Vardy requires some recuperation and has decided to provide it for the visit of City. last_img read more

10 months agoCannavaro writes off Napoli as title contender

first_imgAbout the authorCarlos VolcanoShare the loveHave your say Cannavaro writes off Napoli as title contenderby Carlos Volcano10 months agoSend to a friendShare the loveFabio Cannavaro has wrote off Napoli as a title contender.Cannavaro says Juventus are simply too strong.“It really did seem as if Napoli or Inter could halt the Juventus domination, but the Bianconeri seem intent on marching on regardless,” Cannavaro told Il Mattino.“Juve deserve credit for understanding what to do in certain moments. They signed Cristiano Ronaldo when needing to give confidence and renewed enthusiasm to the squad, stepping up a level in Europe and maintaining the invincible aura in Italy.“The only way Napoli will take the Scudetto off Juventus is by signing Lionel Messi. Either that, or Juve gift it to them.” last_img read more

9 days agoTroy ​Deeney optimistic about Watford form

first_imgAbout the authorFreddie TaylorShare the loveHave your say Troy ​Deeney optimistic about Watford formby Freddie Taylor9 days agoSend to a friendShare the loveTroy Deeney says that he will be back sooner than expected as he recovers from injury.The Watford skipper is going through recovery from a knee operation, which he underwent in mid-August.He is already running on a treadmill and could be ready for field activities very soon.The striker spoke with the club website about his return date and said: “I know when I’m aiming to be back, it’s not too far away now.”I’m just starting to see the light at the end of the tunnel. They are holding me back for my benefit, but when they let me go there will be no stopping me, so they are just trying to rein me in until it’s safe medically and then I’ll be going and pushing myself.”I’m just ready for it. I know what to expect and that I will have to fight for my place. I don’t think there’ll be any playing 45 minutes for the Under-23s first. I’ll be expected to go straight in and I’m ready for everything that is coming.” last_img read more

Regardless Of Rumors, Butch Jones Is On The Hot Seat

first_imgButch Jones surrounded by his players.Twitter/@6NewsThis season was supposed to be a return to form for the proud Tennessee program. While Georgia was the favorite to win the SEC East, some liked the young, talented Volunteers to take a big leap and challenge the Bulldogs for a spot in the SEC Championship. After rough Lane Kiffin and Derek Dooley regimes, Butch Jones looked like the guy to lead the Vols back to national relevance. Instead, Tennessee is 2-3, with brutal losses to Oklahoma, and most recently Arkansas, another disappointing SEC program. The three losses have featured incredibly questionable coaching decisions, and the tide has seemingly turned for head coach Butch Jones.Butch Jones was a darling in Knoxville just three weeks ago, but now some Tennessee fans want to see him gone.To all the people wanting to fire Butch Jones: Charlie Strong will probably be available at the end of the season. #vols— Wesley Mason (@RealWMason) October 4, 2015What’s it like to have all the tools and still fail @UTCoachJones— Will Caffey (@Caffeyteria) October 4, 2015After tonight I am convinced Butch Jones isn’t the man for the job. He can recruit, he can say the right things, but he can’t coach…— Chase Slaven (@chaseslaven7) October 4, 2015Butch Jones has to go. There is no process. There are no bricks. Just mile high piles of cow sh*t— Zach Breazeale (@breazeale31) October 4, 2015Dear diary: today @UTCoachJones was a clown….again, when will he quit?— graeham jones (@JackDaddyJones) October 4, 2015Butch Jones sucks so much at coaching it’s hard to really describe. Recruits, please stop placating him. Dead man walking .— Baltz Vol (@Baltz_Vol) October 4, 2015Lyle @UTCoachJones has had 13+ lead in each of his games and is 2-3. All other Power 5 teams that have led 13+ are 157-5. #Vols #GBO— Matt Broyles (@matt_broyles) October 4, 2015#vfl #vols Here are Butch Jones’ impressive UT wins. pic.twitter.com/FHhBFvyOw7— Charlie Miller (@ChuckInMemphis) October 4, 2015“The magical cure” is taking Butch Jones out into the middle of the desert and leaving him there. kay? Kay.— Sara (@_saral93) October 4, 2015Brick by brick just ain’t cutting it anymore. House is crumbling. Not impressed with Butch Jones. Never should’ve fired Phillip Fulmer.#Vols— Heather☮Brewer (@heatherkayb) October 4, 2015To make matters worse, there are some very nasty rumors out about Jones now. They are completely unverified, but it can’t help the situation. Fox Sports’ Clay Travis, a Tennessee fan, tweeted a link to a post on the VolNation message boards, which includes an absolutely crazy rumor.Butch Jones is Derek Dooley with worse hair.— Clay Travis (@ClayTravisBGID) October 4, 2015You know things are bad for Butch Jones at UT when rumors that he punched offensive lineman Mack Crowder blow up: http://t.co/1p4rENPkTL— Clay Travis (@ClayTravisBGID) October 4, 2015 I don’t believe Butch Jones punched an offensive lineman because I think he’d swing and miss and blame it on youth.— Clay Travis (@ClayTravisBGID) October 4, 2015Again, these are just rumors, and pretty unbelievable ones at that, but even without them, Jones’ seat seems unbelievably hot after just five weeks.last_img read more