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The romaine lettuce outbreak has many consumers thinking about where their crops are grown.One rooftop greenhouse company in Chicago says their lettuce is safer and longer-lasting.Jenn Frymark, the chief agriculture officer and manager of Gotham Greens, pulls out a head of lettuce and immediately starts to eat it."No, you don't need to wash it,” Frymark says. “We don't have that on our package, but there's no reason for me to wash it. I never wash any of our lettuce at home. It's amazing; nothing touches it; it’s so clean.”Here at Gotham Greens, lettuce is grown differently.  They do it hydroponically. That means it’s grown without soil, but in a nutrient-rich water. Instead of a traditional farm field, this lettuce is grown on rooftop greenhouses.Their space on Chicago's south side is the largest rooftop greenhouse in the country.  Because of the controlled environment, crops can grow in a third of the time of a traditional field.“We're giving this plant everything it wants: the right day temp, the right night temp, the nutrients, CO2 levels, air circulation, the water,” Frymark explains. “I mean, these are very coddled plants and they have everything they need, and they can just grow in this perfect environment and reach maturity very quickly.”Gotham Greens sells to grocery stores in the Chicago and New York metro areas, as well as select Whole Foods stores. The product goes from the greenhouse directly to grocery shelves in a day and a half.The company’s lettuce also lasts longer than the traditional grocery lettuce out here. Frymark says their product can last up to two to three weeks in the fridge. Additionally, Gotham Greens prices are comparable to other organic produce.Frymark also says their method dramatically lowers the risk for foodborne illness.“There [are] no manures, there’s no water sources that could be contaminants,” she says. “We don't have birds and animals getting into the field.”She says the company is expanding and plans to open more rooftop greenhouses in the near future. 2053

The Senate on Wednesday will hold a hearing regarding the safety of vaccines, which will feature appearances by Surgeon General Dr. Jerome Adams and National Institutes of Health Director Dr. Francis Collins.The hearing, hosted by the Senate HELP Committee, will discuss the role of vaccines in preventing infectious disease outbreaks and protecting public health.Wednesday's hearing will also include information on a potential COVID-19 vaccine.Top U.S. health experts like Dr. Anthony Fauci say they are cautiously optimistic that there will be enough evidence to grant Emergency Use Authorization to top vaccine candidates by the end of 2020. However, recent polls indicate that some Americans remain skeptical about vaccines.A recent CBS News poll indicates that just 21% of American voters would receive a COVID-19 if one were made available at no cost. That's down from about 30% earlier this year. Two-thirds of those polled say they feel a vaccine would be "rushed" if a vaccine were made available this year.Fauci has said that if a potential vaccine is 75% effective against the virus, it still may not be effective in promoting inoculation levels necessary for "herd immunity" in the U.S. due to Americans' ongoing skepticism about vaccines.Nine vaccine makers banded together to sign a pledge on Tuesday to say that they will not seek Emergency Use Authorization for their vaccine candidates until scientific methods prove they are safe for widespread use. 1476

The smoke from dozens of wildfires in the western United States is stretching clear across the country — and even pushing into Mexico, Canada and Europe. While the dangerous plumes are forcing people inside along the West Coast, residents thousands of miles away in the East are seeing unusually hazy skies and remarkable sunsets.The wildfires racing across tinder-dry landscape in California, Idaho, Oregon and Washington are extraordinary, but the long reach of their smoke isn’t unprecedented. While there are only small pockets in the southeastern U.S. that are haze free, experts say the smoke poses less of a health concern for those who are farther away.The sun was transformed into a perfect orange orb as it set over New York City on Tuesday. Photographs of it sinking behind the skyline and glinting through tree leaves flooded social media. On Wednesday, New Jersey residents described a yellow tinge to the overcast skies, and weather forecasters were kept busy explaining the phenomenon and making predictions as to how long the conditions would last.On the opposite coast, air quality conditions were among some of the worst ever recorded. Smoke cloaked the Golden Gate Bridge and left Portland and Seattle in an ashy fog, as crews have exhausted themselves trying to keep the flames from consuming more homes and even wider swaths of forest.Satellite images showed that smoke from the wildfires has traveled almost 5,000 miles (8,000 kilometers) to Britain and other parts of northern Europe, scientists said Wednesday.The current weather system, which favors a westerly wind across the higher levels of the atmosphere, is to blame for the reach of the smoke, experts explained.“We always seem, at times, to get the right combination of enough smoke and the upper level jet stream to line up to bring that across the country, so we’re just seeing this again,” said Matt Solum with the National Weather Service’s regional operations center in Salt Lake City, Utah. “It’s definitely not the first time this has happened.”There could be some easing of the haze this weekend as a storm system is expected to move into the Pacific Northwest and could affect the conditions that helped the smoke travel across the country. But Solum said there’s always a chance for more smoke and haze to shift around.“Just due to all the wildfires that are going on, this is likely going to continue for a while,” he said. “You might have ebbs and flows of that smoke just depending on how the upper level winds set up.”Kim Knowlton, a senior scientist with the Natural Resources Defense Council in New York City, said she woke up Wednesday to a red sunrise and more haze.She said millions of people who live beyond the flames can end up dealing with diminished air quality as it’s not uncommon for wildfire smoke to travel hundreds of miles.Although the health impacts are reduced the farther and higher into the atmosphere the smoke travels, Knowlton and her colleagues said the resulting haze can exacerbate existing problems like asthma and add to ozone pollution. 3070

The timelines on your Instagram accounts have probably been flooded recently with women posting black-and-white pictures of themselves.The premise of the viral trend comes as a way for women to support each other with the accompaniment of the hashtag #ChallengeAccepted in their caption.The origins of the first picture used in the trend were traced by Taylor Lorenz of The New York Times. Lorenz found that a journalist in Brazil posted the very first picture in the challenge.There had been reports that the challenge first began in order to bring awareness about femicide in Turkey, but Lorenz spoke to Instagram and tweeted that the hashtag in Turkey and the United States were unrelated. 700

The search for missing actress Naya Rivera at a California lake has moved from a rescue effort to a recovery effort, the Ventura County Sheriff's Office said Thursday.In a press release, the VCSO said that investigators believe that Rivera "drowned in what appears to be a tragic accident."The VCSO added that recovery efforts had been hampered because divers are experiencing low visibility in waters.Rivera was last seen on Wednesday at Lake Piru, which is located about 60 miles northwest of Los Angeles. According to Cpt. Eric Buschow of the VCSO, deputies were called to the lake when Rivera's 4-year-old son was found floating adrift in the boat.The child reportedly told deputies that he had been swimming with his mother, but she never returned to the boat.Rivera is best known for portraying Santana on Glee, which ran on Fox between 2009 and 2015. 865

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