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trapped. alarming new findings about climate change. a new report says the melting of glaciers is off the charts can anything be done is the future of food grown in a lab? it's better for the climate, but what does it taste like? and back in the groove. with record sales rising, why so many are turning to turntables this weekend. >> announcer: this is "nbc nightly news" with lester holt good evening, everyone facing an 11:59 p.m. eastern time deadline of its own choosing and a day of high drama, the u.s supreme court has just weighed in on another pivotal and consequential qu...

steps? we'll break it down. the severe storm even a waterspout in florida. millions at risk heading into the weekend. charges against alec baldwin officially dropped and new details about the sgng that killed the "rust" cinematographer as production resumes. the new images from inside the film's montana set. an american killed in sudan as fighting rages on. plus, the latest from u.s. officials on other americans trapped. alarming new findings about climate change and a new report says the melting of glaciers is off the charts. can anything be done? the future of food grow...

You don't need to harm an animal. >> reporter: josh is the ceo of eat just. it's one of only two companies in the u.s. that's received clearance from the fda for human consumption of lab grown meat. the usda still needs to approve it for sale. >> this is not vegan or vegetarian. >> reporter: the other is upside foods head by cardiologist uma valeti. tell me go the science. how does it work? >> the science is fascinating. it's fairly simple. we take cells from eggs or young animals or mature items and identify the cells that are capable of going into fat, protein, connective issue. >> reporter:...

Clinical research has long told patients what they need rather than asking. This has been especially true for treatment involving children. And while...