>> cara santa maria is a neuroscientist. i'm phill torrez. i'm an entomologist. >> the epic drought of 2015 takes a hidden toll. from above these trees may look green and healthy, they are not. >> here we see somthing that's dramatically different. >> now the technology that can see what we can't. >> that's our team... >> i'm a prarie barber. >> ... now let's do some science. hey guys welcome to techknow. i'm phil torres joined by cara santa maria and marita davison. and today we are going to talk two environmental stories and to start off the great american prairie. to me it's one of those iconic images of what the u.s. used to be. unfortunately, now it's almost entirely just a part of our history. >> yeah, there's been a lot of over development of farming, and the suburban explosion that's really taken a toll on a lot of prairie ecosystems. illinois has been extremely hard hit. it's changing but there's been a big change in the landscape there. yeah and this is happening across the u.s. but i gotta say what i really love about this story is

and that's why i'm joined by "techknow's" ex-cia operative, lindsay moran, and cara santa maria who can explain it from a neuroscience perspective. now, i've seen "molly" as a club drug but as a therapeutic drug? >> the military once used this as what they imagined could be a truth serum and now there's evidence that suggests that it could help ptsd sufferers. >> yeah and you know, scientists have long been intrigued by the sort of empathic benefits of mdma but now for the first time, there's an fda backed study so that they can see if these results are scientifically quantifiable. >> this serene treatment room nestled in the woods of south carolina... couldn't be further than the pulsing lights and booming music at this electronic music festival. at festivals and nightclubs the illegal drug "molly" or "ecstasy" is part of the culture. called "molly" or "x" on the street, mdma is really methylenedioxy-methamphetamine. it's a psychoactive drug first developed as a blood-clotting agent - later patented as a diet drug. when taken, mdma acts on the brain by causing the neurons to release mo

hey guys welcome to techknow we're here with cara santa maria and marita davison, because we're talking about drilling for oil in the arctic. now i got to spend twelve days aboard an arctic ice breaker - the us coast guard cutter healy. let me just say, it was complicated. >> and phil, both weather and climate change are huge parts of the story because the sea ice in the arctic is receding. >> and i actually got to see that sea ice receding in action, and the scientists up there that were monitoring this are overwhelmed by the speed that this is actually happening. >> well it seems that the more the ice recedes, the easier it would be to drill right? >> yeah but what happens is actually different because even though the sea ice is gone, the extreme weather conditions remain and that's causing big problems for big oil. >> the arctic - remote, breath-taking - and one of the world's harshest frontiers. for years it's been a front line in a battle over the future of energy and climate change. temperatures here are rising twice as fast as the rest of the world. but the arctic may hold 13 per

seguridad en las intalaciones del estadio levis, de cara al prximo super bowl, estamos en vivo con los detalles --- take vo/lorena --- autoridades del condado de santae la ciudad santuario... poniendo en el ojo del huracn la coperacin de agentes locales con autoridades de inmigracin... top live camera/lucrecia take vo/juanfra --en telemundo 48 somos primeros con la noticia... seguimos esta informacion de ultimo minuto desde livermore donde un camion de carga se incendio esta desdlivermore donde un camion de carga se incendio esta maÑana en la autopista 580 en direccion oeste justo a la altura de la carretera north flynn.... bomberos estan en la escena combatiendo las llamas. si conduce en esa area hagalo con precaucion... takevo --tres carriles con rumbo al takevo/lorena --tres carriles con rumbo al oeste de la autopista interestatal 580 se encuentran cerrados... -- debido a un derrame de grava sobre la carretera el lunes por la noche.... -- caltrans cerr dos de los carriles de la carretera hacia el oeste mientras los equipos esperaban un camin cargador para quital la grava... --chp estima los carriles estarn cerrados durante 2 horas live bug fb luc

carcel principal del condado de santa clara take sot "they threw me down hit my face on corner of the bed i don't know if that broke my jaw" "me tiraron y me golpee la caran la esquina de la cama, no se si eso causo que se me rompiera la quijada" take vo garcia alega que dos agentes correccionales lo golpearon repetidamente, dejandolo con danos permanentes a su sistema nervioso... estas fotografias fueron tomadas mas de un mes despues del supuesto incidente, mientras era atendido por una fractura de quijada... garcia alega que no reporto el incidente porque tenia miedo y admite que tuvo una pelea con otro recluso la noche siguiente... tambien alega haber escuchado a los guardias golpear al joven michael tyree en agosto... de hecho, fue cuando un detective lo interrogo sobre el caso de tyree que le dijo a los investigadores que el tambien habia sido golpeado... en una declaracion, el departamento del sheriff confirma esa parte de la historia de garcia.... take fs "el detective informo a sus superiores y se inicio una investigacion sobre los alegatos del sr. garcia. esa investigación continua" paola on cam el abogado de garcia dice que presentara un litigi