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When two hijacked passenger planes crashed into the World Trade Center towers on September 11, 2001, a massive cloud of dust swept across the New York skyline.The looming cloud, caused by the twin towers' collapse and the digging in ground zero, carried chemicals and carcinogens such as perfluoroalkyl substances or PFASs, a class of chemicals used to make products stain-resistant, nonstick or waterproof. 415

WILMINGTON, Del. – A video has been released that appears to show the moment former vice president Joe Biden asked Sen. Kamala Harris to be his running mate.Harris tweeted the video out Wednesday morning, a day after it was announced that she would join the presumptive Democratic presidential nominee on the ballot as the party’s vice presidential nominee.We are in a battle for the soul of this nation. But together, it's a battle we can win.@JoeBiden—I'm ready to get to work. pic.twitter.com/3PJcUTYBGU— Kamala Harris (@KamalaHarris) August 12, 2020 In the video, dated Tuesday, Aug. 11, Biden asked Harris over video chat if she’s “ready to go to work.”“Oh my God. I’m so ready to go to work,” Harris responds.Harris then goes on to talk a little bit about her background as a Black woman who became a lawyer to fix a broken justice system, her time as the attorney general of California, and her work as a U.S. senator representing The Golden State.The senator explains why she’s joining Biden in the “battle for the soul of this nation.”Lastly, the video cuts back to Harris speaking with Biden over the computer.Biden asks, “First of all, is the answer yes?”She responds, “The answer is absolutely yes, Joe. And I am ready to work. I am ready to do this with you, for you. I’m just – deeply honored and I’m very excited.”Shortly before the video was released, President Donald Trump addressed Biden’s choice for VP on Twitter, saying “@KamalaHarris started strong in the Democrat Primaries, and finished weak, ultimately fleeing the race with almost zero support. That’s the kind of opponent everyone dreams of!”Trump also released an attack ad when Biden made his VP announcement Tuesday. The video called Biden “not that smart” and accused Harris of “rushing to the radical left” during her campaign for president.pic.twitter.com/jXoffXyZed— Donald J. Trump (@realDonaldTrump) August 11, 2020 Biden and Harris are expected to hold a press conference in Delaware at 4:30 p.m. ET Wednesday, appearing for the first time together as running mates. 2062

When it comes to airline safety, mechanical problems and security issues are usually a passenger's top concerns. But there's a possible health risk airline crew members call a stinky little secret.Crew members work to keep passengers safe and comfortable when flying but there's a secret they want you to know about in the cabin air. Flight attendants and pilots call it the "dirty sock smell."One flight attendant, who was granted anonymity for this story for fear of losing his job, says that smell sent him to the emergency room last summer."(The) smell kept getting intense, intense. (I) started to get light-headed, wanting to throw up," "Andrew" said. "For almost 15 minutes the smell just kept getting stronger and it didn't go away. That's when I felt extremely sick, light-headed and was hard to breathe."He wasn't the only one with a serious reaction.   "My other flight attendant next to me asked, 'Is that the smell that everyone's been talking about?' Everyone called it the 'dirty sock smell,'" the flight attendant said.According to industry insiders, the source of that foul stench comes from how airplanes are designed. Air in airplane cabins comes from "bleed air" — air that begins as fresh air outside that enters the jet engine. After entering the engine, some of that air "bleeds" off, mixed in with recycled cabin air and then is pumped back into the cabin.When a gasket leaks inside the jet engine, fumes from hydraulic fluids, oils or de-icing agents can enter the cabin.Julie Anderson, a representative from flight attendant union Association of Flight Attendants, says some of the oils that enter the cabin contain neurotoxic additives."Engine oil fumes contain a very complex mixture of chemicals that can include carbon monoxide," Anderson said. She added that the "dirty sock smell" can lead to hypoxia, headache, dizziness, feeling faint, confusion and even incapacitation."That's obviously an issue for flight safety and security," she said.When Andrew's plane landed and the flight attendants' symptoms persisted, they were sent to the emergency room."They said I had a high level of carbon monoxide detected in my blood," he said. Anderson says the industry has known about the problem since the 1950's and she says the solution is elementary. "My 11-year-old can recognize that it doesn't make sense to compress air in an engine that can leak oil, and feed that air to people in an enclosed space, without putting a filter on board," she said. As simple as that sounds, the stink about dirty sock smell is wafting into the courtroom. In an ongoing lawsuit, a group of flight attendants is suing Boeing, claiming their health suffered from a fume event on an Alaska Airlines flight. Boeing declined a request for an interview but issued a statement, saying that "Boeing has not changed its position that cabin air is safe to breathe." (See Boeing's full statement below) Even so, Boeing's new Dreamliner 787 doesn't use bleed air at all. Instead, air is generated by compressors. But that's the only plane in the sky using that system. Flight attendant Andrew is now plagued by a nagging cough and has to use an inhaler, causing him to worry more about travelers.   "I was concerned that if someone got sick, they wouldn't know why they got sick," he said. "My first responsibility is the safety and security of my passengers."Airbus, the FAA and trade organization Airlines for America all issued statements when asked for comment. Airbus stated they are "...not familiar with the events you're talking about" and referred to this study which concludes while concentrates in cabin air are present, they are very low and evidence doesn't show there is a health risk. The European Aviation Safety Agency published studies on cabin air quality in March of 2017. Allegiant and Spirit never responded to a request for comment. United Airlines referred reporters to Airlines for America.STATEMENT FROM BOEING: 4066

With Hurricane Laura intensifying, forecasters predict it could be a Category 3 storm or higher. Marco was minor in comparison.There's already trouble for low lying areas of the Gulf Coast. Storm surge washed away about 500 feet of a levee in Grand Isle, Louisiana. The National Guard put up sandbags to protect the island.With predictions of possibly 11 feet of storm surge and 15 inches of rain, it could prove too much for other areas.“If they have a failure and in some cases, there will be failures, then the internal areas will flood and it’s very difficult then, once you have a breach in the levee, to keep the water from the outside coming in,” said Gerald Galloway, P.E., PhD.Hurricane Katrina hit the lower 9th ward 15 years ago this month.A billion network of new levees and floodwalls were put in. The Army Corps of Engineers said the system will stop providing adequate protection in as little as four years because of rising sea levels and shrinking levees.There are up to 100,000 miles of levees nationwide, most of them in serious need of repair.Levees received a "D" on the American Society of Civil Engineers' national infrastructure report card.“Where you have a challenge is those areas that are not yet protected. That’s going to be a problem and where they are outside the levees in some distance and there isn’t any normal flood protection,” said Galloway.Galloway's life's work is in flooding, partially with the Army Corps of Engineers. If water overtops levees, he says the best-case scenario is for pumps to get it out, or homes elevated, or at the very least people are evacuated. 1621

Why is a guitar-slinging young cowboy all over the internet Tuesday? He’s singing about reducing methane, not normally a topic for country western music. It’s an ad touting new research and new burgers from Burger King.Livestock is responsible for about 14.5 percent of global greenhouse gas emissions. Those emissions are in the form of burps and farts as cows and other animals digest their food.Burger King partnered with scientists in the U.S. and Mexico to test different remedies humans have used for centuries to calm tummies, including chamomile, baking soda, and lemongrass.What they found is adding lemongrass can reduce that animal’s methane emissions by a third. Roughly 100 grams (about half a cup) of dried leaves is added to the cows’ daily feed.The research was done in partnership with U.C. Davis in Northern California and Autonomous University of the State of Mexico in Toluca, Mexico. The findings are being made available to everyone, and Burger King is pledging to continue to work with scientists as part of their beef sustainability strategy.Starting Tuesday, select Burger King locations in Miami, New York, Austin, Portland and Los Angeles will offer the Reduced Methane Emissions Beef Whopper sandwich, made with beef from cows eating the lemongrass diet. 1290