hrough the insulation of the wire and cause a short circuit or a fire. >> reporter: and it's not just the 787. twice in the last year, the air force has stopped taking delivery of the new 6 aerial based refueling planes after finding so-called foreign object debris, including metal shaves. >> these are things like trash, tools, nuts and bolts that are simply unacceptableou airplanes. >> reporter: boeing and the air force say corrective measures are now in place, but in the wake of the 737 max crashes, senator blumenthal is concerned. >> boeing needs to be taken to the woodshed. the faa needs reform and whistle-blowers need protection. >> reporter: five airlines tell us they have full confidence in the 787, and there is no indication that a production

issue has ever led to a significant safety problem. the planes have never experienced a crash. sources tell us while there should never be foreign debris inside a new airliner, it's not uncommon. jeff? >> all right. kris van cleave, thank you. there were six people on board aneshed itexas penedbo 70 pilot was preparing to land. here is mireya villarreal. >> reporter: from the sky you see all that's left of a twin-engine plane that crashed near the small town of kerrville, texas. the plane left the west houston airport and was attempting to land at the kerrville municipal airport just before 9:00 a.m. local time. sources say the aircraft may have lost one engine, sending it into a deadly spin, crashing on a private ranch six miles northwest of the airport. richard hall saw the plane just before it crashed. >> just came down and just hit the ground like a cannon, and it flattened it out. >> reporter: the crash killed all six on board.

the plane is registered to jeffrey weiss of houston, a pilot for more than 40 years. he also donated his time to nonprofit organizationsike fligr children. investigatrs would not confirm if he was on board. we have spoken with several of weiss' friends who say they've been trying to get ahold of him all day by phone, but have not had any luck. jeff, we do know the ntsb and the faa have investigation into the cause of the plane crash, but they won't have information on that or the other victims any time soon. >> all right, sad story. mireya, thank you very much. >> the mayor of yuma, arizona has declared a state of emergency as the city on the border struggles to handle a flood of migrants. yuma is now asking for state and federal help. janet shamlian takes us inside the crisis tonight. >> reporter: it's the front line in arizona's border battle, and it didn't take long to see it ourselves. what you're looking at is what

happens multiple times a day here on the arizona border. you see a group of people, maybe six or eight of them being apprehended by border agents. is this it for today? >> no. we've been averaging now for the last week or two over 300 a day. >> reporter: border agents gather names and offer water before taking them to detention centers. 72 hours later, the migrants, mostly families from central america, are released intoyua c shelter, a converted salvation army thrift store with 200 beds. how many spent the night here last night? >> last night we had 233. >> reporter: so you're just taking them all? >> just as many as we possibly can. >> reporter: yuma's mayor has declared a state of emergency, asking for state and federal funds. >> it's like if a hurricane is coming and you don't prepare for it, this is the same kind of thing. >> reporter: more than 24,000 families crossed in the yuma sector between october of last year and this march, up 273%

from the same period a year earlier. immigrants can get stuck in yuma for days because they can't get a bus ticket out to meet their sponsor family. this is one of the few greyhound buses that comes through yuma each day. if there were more, they could move the migrants out of this community quicker. there would be less of a burden on the city. despite challenges, the city is full of heart. ruth velazquez gives away warm clothes at the bus stop. >> i have everything i need, but these people don't. >> reporter: apprehensions at the southern border are at a 12-year high. last month almost 9,000 of those detained were unaccompanied children. >> what i think people don't understand about this crisis is just the word itself. it's a crisis. it's not in their community yet, but it could be. >> reporter: asylum seekers overwhelming a border town with little relief on the horizon. janet shamlian, condolence news, yuma, arizona. up next, our series "earth matters" takes you deep inside

the world's largest rain forest.

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looking into the effects of deforestation in our series "earth matters." scientists say carbon dioxide levels are on the rise, partly because so many trees have been cut down in the world's largest rain forest, the amazon. vladimir duthiers reports from brazil. >> reporter: going to the amazon is anying butea >>n. >> repor y s ver remote areas a long truck drive to get to tanguru ranch. and this industrial farm is the front line in the battle against deforestation. >> it's half forest and half farmland. so we're able to set up different experiments in both farmland and forest to see what the difference. >> if you cut down the forest, you're just adding the global warming. you're doing it by increasing the amount of carbon that goes in the atmosphere and you're doing it by heating up the surface. >> reporter: since the rise of industrial farming over the past 50 years, scientists estimate

that almost 20% of the original amazon has disappeared, cut down the make way for farming. to really measure the impact, you need to go above the trees. >> that tree is probably three or four tons of carbon that it is storing. >> reporter: scientist paolo brando told us that these trees actually absorb damaging gases that would otherwise contribute to climate change. >> what happens if these trees are cut down and the carbon is released into the atmosphere? >> the carbon goes into the atmosphere and contributes to trap heat in the atmosphere. >> reporter: there is so much carbon stored in all the trees of the amazon as entire planet has generated over the past ten years. cut these trees down, and we effectively release another decade's worth of heat-trapping gases on top of what the earth continues to release on its own. >> each year there is more being taken out, and there is none being replaced. so that's actually the problem. >> reporter: as scientists work to find an answer, they're focusing on the jungle where these native brazilians live and

have acquired a vast knowledge of the forest system. >> the indigenous are embedded in this landscape, but they're also enormous areas of pristine well cared for forest. it's going to be really important to engage indigenous people in this whole discussion of how can we make a landscape that works for everyone. >> reporter: vladimir duthiers, cbs news, brasilia, brazil. coming up here tonight, ukraine's president-elect-elect is a comedian, seriously. uh-oh, looks like someone's

still nervous about buying a new house. is it that obvious? yes it is. you know, maybe you'd worry less if you got geico to help with your homeowners insurance. i didn't know geico could helps with homeowners insurance. yep, they've been doing it for years. what are you doing? big steve? thanks, man. there he is. get to know geico and see how much you could save on homeowners and renters insurance. you wouldn't accept from any one else. so why accept it from your allergy pills? most pills don't finish the job because they don't relieve nasal congestion. flonase allergy relief is different. flonase relieves sneezing, itchy, watery eyes and a runny nose, plus nasal congestion, which pills don't. flonase helps block 6 key inflammatory substances. most pills only block one. and 6 is greater than 1. start your day with flonase for more complete allergy relief. flonase. this changes everything.

a video on social media showed a model s electric car catching fire in a garage in shanghai, china. no one was inside. a number of teslas caught fire in 2013 after crashes. the supreme court will consider whether workers can be fired because of their sexual orientation or gender identity. the justices will look at two cases involving men who say they lost their jobs because they're gay. a third case involves an employee let go after transitioning from male to female. he played an unlikely president on a tv show. now he is the actual president of ukraine. comedian volodymyr zelensky won

in a landslide. he has zero political experience but promises to end government

>> dr. stanley: remember this: cannot change the laws of god. when he has visited you in some form of adversity and he brings you through that, that's like he has increased the strength of the foundation of your life and your faith in him. [music]

we end tonight in the west texas desert, where dreams as big as the sky sometimes come true. here is omar villafranca. >> reporter: the stars at night are big and bright in marfa, texas. >> i see the big dipper. >> reporter: what else? >> a bunch of sparkling

beautiful lights. >> reporter: inspired by the cosmos, collett, ashley, charlotte, daniela, madison and mabel decided to enter a countrywide science test. their team name? the marfa martians. >> it's kind of empowering that young people, young women can do things like that too. >> reporter: if they won, their experiment would be performed on the iss, the international space station by real astronauts. but winning seemed like a long shot. more than 23,000 students were participating. many were in high school. sheri oweto is their science teacher. >> i was trying to prepare them for not going on because they're young, and they surprise me every single time we good on to the next step. >> reporter: the judges at the smithsonian were impressed. the girls' experiment, how to kill bacteria in space, is heading to the iss.

oun't do that, don't let thing them pull you down. just do it. >> reporter: the girls celebrated by piling in the back of a pickup truck to catch a glimpse of their future. see that tiny white speck floating in the sky? that's the iss flying by. >> oh my god! >> we can actually see it. >> reporter: you can look up? >> yeah, just right there. >> reporter: despite being one of the youngest teams from a tiny texas town, the girls shot for the stars and landed on the international space station. omar villafranca, cbs news, marfa, texas. that is the "overnight news" for this tuesday. for some of you, the news continues. for others, check back later for the morning news and "cbs this morning." from the broadcast center in new york city, i'm jeff glor.

this is the "cbs overnight news." >> welcome to the "overnight news." i'm nikki battiste. a day of mourning has been declared in sri lanka. the island nation is still reeling from the easter day terror attacks on churches and hotels that left about 300 people dead. many more were hurt, and some of the victims were american. now the sri lankan security services have some explaining to do. it turns out they were notified weeks ago about the terror group planning the attacks and did nothing to stop it. elizabeth palmer has the latest. >> reporter: sri lanka's government has named the organization it says carried out these atrocities, thowheed jamath, a local extremist

islamist group probably with outside help. yesterday the first bomb went off at the shrine of st. anthony, leaving scores of wounded and dead. was a suspicious van in the neighborhood, they ran. and then another bomb, just as experts were trying to diffuse it. incredibly, there were no casualties, but people living nearby are furious with authorities they believe have failed to protect them. today a mob taking the law into its own hands battled police to get hold of the man they decided was a terrorist. you can imagine that rumors are running like wildfire through this neighborhood since the bomb went off this afternoon, and now the police in the military have amped up the tension, moving everybody back because they say they think there are even more explosives hidden nearby. people are scared and no wonder. suicide bombers carried out brazen attacks on three churches

on easter day, one of the most joyous days in the calendar. there was overwhelming grief. the bombers hit three luxury hotels too as sri lankans and visitors gathered for brunch. 39 foreigners are known to have died, among them four americans, including fifth grade student kieran shafritz de zoysa and dieter kowalski from denver, who was here on a business trip. his father, martin kowalski, is in shock. >> he was only 40 years old. and you never expect that you would outlive your son. >> reporter: sri lanka's prime minister has admitted that security officials here received warnings more than a week ago that churches might come under attack. but for some reason, they failed to provide extra protection. jeff? to impeach or not impeach, that is the question facing

democratic leaders of congress as they continue to mull their response to the mueller report. so far there is no straight answer, and president trump insists he's not concerned. weija jiang has the latest. >> are you worried about impeachment, mr. president? >> not even a little bit. >> reporter: during the annual easter egg roll at the white house, president tru acapitohili tamped down the talk too. ahead of a conference call with house democrats late this afternoon, pelosi sent them a letter writing "the facts regarding holding the president accountable can be gained outside of impeachment hearings." while democrats agree the mueller report provides evidence of obstruction of justice -- >> i would say in every way, this is more significant than watergate. >> reporter: they're grappling with how to use it, with big names like elizabeth warren and alexandria ocasio-cortez pushing impeachment, while others urge caution.

>> i think we have to do -- be very careful here. the american people, a lot of them still don't believe that president trump is doing things to destroy our democracy. >> reporter: on "face the nation," congressman elijah cummings, chairman of the house oversight committee, also talked about the subpoena he issued seeking years of the president's financial records. today mr. trump counterpunched with a lawsuit to block it. his lawyer said in a statement the request lacks any legitimate legislative purpose and is an abuse of power. cummings said this complaint reads more like political talking points than a reasoned legal brief. according to sources on speaker pelosi's conference call, some members were fired up because they do not want to wait to launch impeachment hearings. jeff, one lawmaker described the call as bs, and another said of the speaker, she can't stop us. more trouble for boeing. ma

after a pair of deadly crashes. now there are concerns about the 787 dreamliner. airlines are complaining that brand-new 787s are being delivered with tools, trash, nuts, and bolts littered through the planes, and there are similar complaints about the 767, which the air force uses as an aerial tanker here. is kris van cleave. >> reporter: the 787 dream liner is boeing's flagship airplane. american and united fly 86 of them. but cbs news has confirmed the faa received nearly a dozen whistle-blower complaints as recently as 2017 expressing concerns about the manufacturing of the dreamliner at boeing's south carolina plant. tige froallegatis of finding tod debris inside new planes to employees facing pressure to put speed over safety. >> i don't feel like the company is putting the priority into quality. it's production for profit. >> reporter: rich mester is a former boeing technician who spoke to "the times." he was fired last year. how often would you say you

found debris inside an airliner where it shouldn't have been? >> every plane. i personally found tubes of sealant, nuts, panduits, we found clamps, lights, a string of lights in the rear section of the airplane. >> reporter: boeing says "the times" report painted a skewed and inaccurate picture of the boeing 787 with a rehashing of old stories and rumors, adding safety and quality are at the core of boeing's values. but in 2017, the faa found metal shaves in several dreamliners that boeing had certified as debris-free. >> the metal shaves have the ability to cut through the insulation of the wire and cause a short circuit or a fire. >> reporter: and it's not just the 787. twice in the last year, the air force ha stopped taking delivery of the new 767 aerial-based refueling planes

after finding so-called foreign object debris, including metal shavings. >> these are things like trash, tools, nuts and bolts that are simply unacceptable to have on our airplanes. >> reporter: boeing and the air force say corrective measures are now in place, but in the wake of the 737 max crashes, senator richard blumenthal is concerned. >> boeing needs to be taken to the woodshed. the faa needs far-reaching reform, and whistle-blowers need protection. >> reporter: five airlines tell us they have full confidence in the 787, and there is no indication that a production issue has ever led to a significant safety problem. the planes have never experienced a crash. sources tell us while there should never be foreign debris inside a new airliner, it's not uncommon. the "cbs overnight news" will be right back.

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this is the "cbs overnight news." >> welcome back. i'm nikki battiste. monday was earth day, and this morning we'll be taking a look at some of the issues affecting the planet in our series "earth matters." we begin in london, where there is a new law designed to cut smog in the heart of the city. mark phillips reports. >> reporter: you don't have to go somewhere exotic to run into the effects of climate change vo wio and because of environmental concerns, that drive has gotten a lot more expensive for some lately. approach central london and you'll see these signs announcing a charge just for bringing your car into town.

ka-ching, about 15 bucks. and if you've got an older car, especially if it's a diesel, the overhead cameras will spot you, and under the new ultra low emission zone, that will be another 16.50. that's over 30 dollars just to drive into town. why? just ask the mayor. >> if you are going to drive a more polluting vehicle you, have to pay for that. >> reporter: the point of mayor sidique khan's charges is to reduce pollution by reducing the number of vehicles that produce it. >> this is the iconic graph of co2 concentrations. >> reporter: at the british weather forecasting service, they track the rise of carbon dioxide, the most prevalent greenhouse gas. much of the datacomming from the mauna loa observatory in hawaii which has been measuring co2 since 1968. scientists like ritch betz count

the gas in parts per million in the air around us. >> almost down to 300 at the beginning. way past 400 now. so a 30% increase in co2 over that half century or more. >> reporter: and why is that significant? >> it's significant because it's causing the world to warm. >> reporter: in just that period, average global temperatures have risen above 1 degree fahrenheit, a rise scientists connect to more severe weather, increased flooding, and drought. there are still skeptics out there somehow who either doubt the source of the extra co2 in the atmosphere and where it's coming from. >> even the skeptic, those who are disputing it'srobl will accept that the science is sound and that the warming is caused by increased greenhouse gases. >> reporter: over the past few years, we've been going to some of the earth's extreme environments, where the signs of climate change tend to show up first. we found that carbon that's been frozen in the arctic permafrost

is being released as it thaws. we found antarctic islands where penguin colonies used to thrive that are now almost empty because the sea ice is gone. we've seen the coral bleaching due to warming on australia's great barrier reef. they used to simply produce daily weather forecasts at places like this. now they can also look further ito the future. >> so we can't predict individual weather days more than a few days ahead, but we can make predictions of the annual average temperature and the seasonal temperature and rainfall. and we're predicting that a warmer world and rising sea levels. >> reporter: the trend is up? >> yeah. >> reporter: and if london is any example, the way we move around and the way we live our lives will change too. >> and that was mark phillips reporting. and if it seems the air is bad in london, wait until you see what's happening in india.

the world health organization says the air is so foul that it kills 1.8 million indians every year. elizabeth palmer has the story from new delhi. >> reporter: delhi is ill, with tubes in both lungs fighting tuberculosis. >> he was having difficulty breathing. >> reporter: he still is. and so is every patient in the emergency ward of delhi's national institute for tb and respiratory disease. all of them, one way or another, are victims of delhi's filthy air. every day between 800 and a thousand people with lung problems line up here to be treated. dr. arvind kumar is a prominent chest surgeon and founder of the lung care foundation. >> we have no nonsmockers in india. everybody living in india is a

smoker. >> reporter: he means just from breathing the air. at its worst, it can be 70 times dirtier than the world health organization considers safe. in delhi, a booming city of 19 million, a thousand extra cars hit the road every day, contributing to murk that's dangerous in many ways. but the real cost of this pollution is human health. >> so brain attack, brain development poor, heart attack, hypertension, birth defects. >> reporter: politicians had no choice. they had to at least try to go green. if you need a taxi in new delhi, you get into one of these. but with 100,000 rickshaws spewing pollution into the air, the government has to do something. so it started out by banning the gasoline-powered ones. now the natural gas ones are

being phased out because the future is electric. and it's being built here at the rickshaw factory on delhi's outskirts. not very high-tech, maybe, but these vehicles are zero emission. shashir headed the shift to electric vehicles a few years ago. so the writing is on the wall. india is going electric? >> yes. it's inevitable. >> reporter: already the e-rickshaws are a hit. they're cheaper to run. they can be recharged by the driver at home, and the government is about to subsidize the cost of the batteries. that's because india can't clean up unless everyone, even the poorest, can afford to join in. take traditional cooking fires in this slum. they send fine particles of burning wood, garbage, even dung deep into the lungs. smoke is a huge part of delhi's

may nourish a family, at the same time, it makes everybody's health that much worse. so the government is subsidizing an alternative, clean burning natural gas stoves at a price almost everyone can match. . >> air is needed for every breath. the only things you can do if you want to avoid total damage is to stop breathing, which unfortunately we cannot do for more than a minute. >> reporter: there is some hope. peak pollution levels seem to have leveled off. so now the urgent challenge is to actually bring them down. i'm elizabeth palmer in new delhi. i'm alex trebek, here to tell you about the colonial penn program. if you're age 50 to 85, and looking to buy life insurance on a fixed budget, remember the three p's. what are the three p's? the three p's of life insurance on a fixed budget are price, price, and price.

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the effects of climate change are not only being felt around the world, but also right here in the u.s. the rio grande is one of our country's longest rivers. it winds nearly 2,000 miles from high in the rockies to the gulf of mexico. more than six million people rely on it for drinking water and irrigation. michelle miller took a 300-mile trip along the rio grande and has the report from las cruces, new mexico. >> reporter: by this time of year, water should be flowing along this part of the rio grande. in fact, exactly where i am standing now, but farmers who

rely on it are going to have to wait at least another month. it's a side effect of a drought that has cycled on for the last 17 years, and scientists are predicting it will be even hotter and dryer in the future. that means folks who rely on this river will have to adapt to what could be their new normal. for more than 130 years, this river gauge in northern new mexico has tracked the pulse of the rio grande. >> it's the oldest continuously operated gauge in the united states operated by the u.s. geological survey. >> reporter: when we visited, the rio grande was beating along. >> on the bottom we have a trap door. >> reporter: but mark gunn, a hydrologist with the usgs told us last july its flow nearly flat lined. westn the history of this as the gauge. >> reporter: how low did it get? >> it was so low we had to dig a he nnel into the river to be

gauge. >> reporter: so it basically made your machine here malfunction. >> yeah, it did. >> reporter: the colorado snowpack that melts into the rio grande is declining. 25% in the last 50 years, and climatology professor david getsler says climate change is threatening to dry it up. >> i foresee dry spells getting dryer, droughts getting more intense, and water resources being put under more pressure. >> reporter: with that in mind, cities downstream have been preparing. albuquerque's water authority spent $6 million incentivizing desert landscaping. the city even sent every fourth grade class to the river for a lesson in water conservation. >> because there can be no life without water. >> that's right. >> reporter: we followed the rio grande 150 miles south to where it pulls into the elephant butte reservoir, new mexico's largest.

the shrinking reservoir can be seen from space, but up you can see the bathtub ring left by higher water levels 25 years ago. >> we're sort of a microcosm of a lot of river systems in the world. >> reporter: so you're saying the rio grande is the canary in the coal mine? >> sure. think of it that way. as things warm up, for a given level of precipitation you get less water into your river and reservoirs. >> reporter: that means less of it can be released to the 90,000 acres of farmland on the other side of this dam. >> it is now april, and we have not released any water from storage. we should have been running for a month and a half by now. >> reporter: a month and a half? >> yeah. released in june, parts of the rio grande will look like this, dusty and dry like the desert around it, and the canals that deliver water to farms like dixie ranch will remain empty. so whatam directly correlates av yrs

of lots of water. >> reporter: greg has prepared 310 acres of pecan trees for either scenario. he has added more groundwater wells for irrigation during drought and drought technology to the century old farm to ensure that every drop counts. >> so we've developed a computer program for our farm. and when i irrigate the tree, it can then predict when it will need to be irrigated again. >> reporter: davie is not ready to continue district the drought is coming. you don't sound worried. >> the worry would be there is a future i can't plan for, and i worry that it's coming. i believe that we can plan, that we can adapt, and that we can adjust to whatever conditions come. >> reporter: everyone's hoping that this year's above average snowpack will offer some relief, but it won't mean that the drought is over. in fact, one study is predicting

that by the turn of the next century, that if everything

in our series "earth matters," we're taking a look at some of the problems facing our environment, and one big problem, plastics fouling the seas. scott tweedie of our network 10 station in australia has the story from down under. >> reporter: this is the world famous bondi beach, and this is some of the pollution that's washed up on its shores. from rising sea levels to core bleaching, this is one of the many things that threatens marine life in australia. however, there are people hard at work trying to find a viable solution to our world's ocean problems. in the waters around sydney, a device called a sea bin is working around the clock, slowly filtering out debris. alexandria ridout works with the sea bin project. >> they collect plastics,

microplastics, oil. >> marinas yacht clubs are the perfect place. >> reporter: each costs $405 and runs on electricity or solar power. one sea bin is capable of catching the equivalent of 90,000 shopping bags, or nearly 170,000 plastic utensils over the course of the year there are more than 700 sea bins working in harbors and marinas around the world. the company is deploying an additional 60 sea bins in the enthusiast week on top of the six currently cleaning the waters around california. will sea bins save our oceans? >> look, they won't save the ocean. the only way to save the ocean is through behavior and cultural change. but they're a positive impact, and it can make a small difference in the grand scheme of things. >> reporter: and they're not the only ones working to clean the ocean there are other ambitious efforts, including a plan that is currently on hold to use a 2,000 foot boom to help collect a massive area of floating trash

known as the great pacific garbage patch. marine biologist vanessa pirotta said marine wildlife are consuming plastics at an alarming rate. >> for example, we've seen turtles and dolphins withwhel c. >> reporter: pirotta says plastics have even been detected in remote places like antarctica. >> due to awareness around protecting our oceans, not only in australia but hopefully around the world, we're working on ways to protect our marine environment. >> reporter: some areas around the world are starting to take actions against single use plastics, like banning plastic straws, bags and utensils that litter our oceans. changes in attitudes toward plastics make this beach and beaches around the world cleaner. >> we should all do our part. every little bit counts. and that's the "overnight news" for this tuesday. for some of you, the news continues.

for over, check back with us a morninom the bca centerew yo it's tuesday, april 23. this is the "cbs morning news." democratic divide. lawmakers on the left split over the issue of impeachment while president trump files suit to block them from seeing his finances. the state of emergency in sri lanka. the country mourns the hundreds of lives lost in the eastern terror attack. a plane accident in texas kills six people. what we are now learning about the crash. good morning from studio 57