with chris hedges the planet as the climatologist james hansen warns is out of energy balance in other words there is more energy coming in from the sun than there is he being radiated to space as long as this remains true the earth will steadily get warmer and the destructive effects of climate change monster storms flooding droughts and wildfires will become more pronounced and more deadly the human species responsible for climate change will either restore the planet's energy balance by reducing the amount of carbon dioxide in the atmosphere from its present more than four hundred parts per million to about three hundred fifty parts per million or see an acceleration of species extinction that will ultimately include human beings we face as the recent devastation in florida and houston illustrate a climate emergency we must break the stranglehold of the fossil fuel and animal agriculture industries we must improve our agricultural and forestry practices so that we capture carbon dioxide from the atmosphere and keep it in the soil and the biosphere these measures require radically re

at stake is our future on the planet. can we really mortgage that out and place it on the financial markets. lots of banks have committed to protecting species for just fifty years just enough time to make a profit yet just a speck of dust as far as the earth is concerned. do. economic good energy often or shit or for no is just more or for speaker or vogue polish savate when i push pure morphine i'm share that energy is sit twenty get if . me. and. it was. just. that. we need to learn to get out of the valuation on the market which is only price everything has a price and nothing has value to everything of nature having value. in price and finding other ways for humanity as humanity for most of its history. has done is not related to nature. the world of finance toyed with the homes and households of america sparking a crisis around the while. only a handful of experts foresaw the danger of the mechanisms we engender the the now we know the same recipes or a pint but this time they too late isn't a challenge is it a good

pronounced and more deadly the human species responsible for climate change will either restore the planet's energy balance by reducing the amount of carbon dioxide in the atmosphere from its present more than four hundred parts per million to about three hundred fifty parts per million or see an acceleration of species extinction that will ultimately include human beings we face as the recent devastation in florida and houston illustrates a climate emergency we must break the stranglehold of the fossil fuel and culture industries we must improve our agricultural and forestry practices so that we capture carbon dioxide from the atmosphere and keep it in the soil and the biosphere these measures require radically reconfiguring our relationship with the planet and if we do not take them we are doomed party correspondent on your power pole looks at the accelerating pace of climate change. are changing climate is demonstrating its devastating impact lately we've been shattering records when it comes to weather starting with the fact that twenty sixteen was the hottest year ever recorded not only

is it a good idea to leave the planet in the. welcome back as we take a look at weather conditions across the levant and western parts of asia you see this area of cloud moving through the caucuses in towards the caspian sea so rain is returning across this region all the way from ankara on the southern side of the black sea through the mountains with some snow obviously at the higher elevations there through towards the caspian sea further towards the south was still looking fine weather conditions and monday in beirut twenty seven degrees and will hang on to that as we head on through into tuesday but generally temperatures are coming down across the region we're looking at highs of just thirty one in baghdad thirty four in kuwait also no such stays with the showers going through back and temperatures dropping quite considerably in maximum just fourteen here in the arabian peninsula we've had the blowing down through the gulf over the last few days does he stand monday through tuesday but temperatures still thirty eight degrees

is it a good idea to leave the planet in that hands. in the hash tag era when news coverage of looking for an easy solution we delved deep of says and challenge the status quo is join the hot sun for a new season of love from at this time of his era. from dusk the sunset so it's proving something. to summarize the talking asian metropolis hello there we've been seeing yet more hail storms across parts of south america recently has been across this line here where we've seen the worst of the storms we've also seen plenty of them in the northern parts of argentina they've been going on for about a week now and the latest place to be hit by them is a place called in bolivia you can see the hail damage that we've seen there loss of hail brought in with some very heavy rain as well causing a fair amount of flooding to now that system is now eventually breaking up a little bit so this should be some far less violent weather over the next few days so with just a bit of cloud just the old shower head looks like ascension will get to around twent

the soil and the biosphere these measures require radically reconfiguring our relationship with the planet and if we do not take them we are doomed party correspondent on your power bill looks at the accelerating pace of climate change. are changing climate is demonstrating its devastating impact lately we've been shattering records when it comes to weather starting with the fact that twenty sixteen was the hottest year ever recorded not only that but it was the third year in a row to break the record leading nasa to declare quote the ongoing a long term warming trend is clear and just in case you're wondering yes twenty seventeen is so far keeping up with the hottest years ever recorded and no matter where you are your put at risk by climbing temperatures the islands and coasts of the atlantic are currently in a state of climate caused crisis having been ravaged by five hurricanes in just thirty days not only did these five storms make september twenty seven thousand the strongest month for hurricanes ever recorded but hurricane irma herself was the single most powerful hurricane to ever

level is a perhaps the biggest issue but there are other things we're we're driving species on the planet to extinction and if we continue on business as usual this century the estimates are that we could drive half of the species on the planet to extinction so that's also irreparable so that's that's why it's an intergenerational issue it's the present generation that's burning of fossil fuels getting the benefits of the energy but then the next generation gets the gets the effect i mean even if we stop all carbon emissions today. we have what decades of of the facts in the future if we stopped all fossil fuel use today the warming would continue for a decade or so but then it would stabilize and even begin to go down but it's very hard to suddenly stop all the c o two emissions but what we could do if we reduce emissions five or six percent a year we could get back to three hundred fifty ppm by the end of this century we would also have to store some more carbon is that so reforestation through the forest in the soil and in the biosphere through reforestation and improved agricultural a

is not interested as a tool in what's going on here but i think it's a relief when are the other planets not. even come from trees the leaves the sea what do you see all the time the same they repeat the same words that's on monday and for the other leaders so it's it's it's it's impossible to talk to them prime minister spanish prime minister met in the crowd which said that madrid has not revoking catalonians autonomy but merely dismissing and removing the local government that led to this crisis but what happened this saturday in the region of council lonny a mania local authorities call defacto a blow to democracy. please second discuss this now with thomas harrington professor of iberian studies at trinity college in hartford connecticut good to have you all tell us the council on president assad that he will reject madrid's move to take away these regions autonomous powers for. i think he can do that if he uses force but that becomes the that is the major question here what is the role of the force in elective democracies in the twenty first century. i think the consensus on the ca

all of the planets were all on the same side of the sun, i was like oh, my gosh, i better look there, because that means you could probably get one spacecraft that could get all of those planets and that's how it happened. that's how that was discovered and you have to run all these trajectories until you find the best launch windows. 1977, 1978 and the real problem here is that only recurs only 175 years. so if you miss this one, you've lost it because it takes time to build a spacecraft. we had about 10 years to do it. and last time this opportunity ever came was when thomas jefferson was president and he must have -- muffed it. >> so you have already anticipated one of the questions. but let me ask you, the first successful gravity assist was 1974 with mariner 10. so how did you know this was work or what other problems did you think might happen? >> i knew it would work because as astronomers have known about it since the early 1700s. and a lot of scientists know if you fly past a planet with gravity, it will give it a slingshot effect. we also fixtured that out with the venus and

with chris hedges the planet as the climatologist james hansen warns is out of energy balance in other words there is more energy coming in from the sun than there is he being radiated to space as long as this remains true the earth will steadily get warmer and the destructive effects of climate change monster storms flooding droughts and wildfires will become more pronounced and more deadly the human species responsible for climate change will either restore the planet's energy balance by reducing the amount of carbon dioxide in the atmosphere from its present more than four hundred parts per million to about three hundred fifty parts per million or see an acceleration of species extinction that will ultimately include human beings we face as the recent devastation in florida and houston illustrate a climate emergency we must break the stranglehold of the fossil fuel and culture industries we must improve our agricultural and forestry practices so that we capture carbon dioxide from the atmosphere and keep it in the soil and the biosphere these measures require radically reconfiguring

this bird may be the only one of its kind left on the planet. d in here could be the last of this kind of bird? yep. birdsong. java, the largest and most crowded island in indonesia. home to more than 140 million people. cities, towns and villages seem to squeeze into every available space. there is very little pristine forest left here, but just a few square kilometrescan be home to hundreds of animals and birds. some are found only on this island. and some are critically endangered. but it is many of java's songbirds that have now slipped under the conservation radar to the very brink of extinction. a recent global conservation review revealed that 19 species are now trapped in such high numbers that they are in danger of dying out. human activity is driving species towards extinction around the world. but here, where bustling megacities reach into tropical rainforest, it's a microcosm of that global crisis. so how has the trade in trapped songbirds reached such a tipping point? and can anything be done to save them? uwas is our guide on the st

and what if this alliance was the only means of saving the planet. we are witnessing around the word this hungry money which is only looking at how to make the next profit devastating economies devastating ecosystems putting a price on the protection of nature green economy is sound good but it was all about privatized sation of nature should our environment be for sale what we're trying to do is destroy people to stabilize the crunch give them a financial incentive to do that pricing the planet at this time on al-jazeera. a new level of luxury has arrived. an experience that will transform the way we treat. our impeccable service remains but none comes breaking. business clients. the altar for the sea the finest. weather conducting business sharing especially with. the best of. the church that. ranks them while. trying some. centuries in the sky introducing. us to use. cars over was going places together. from the clear blue sky of the dome home. to the fresh fruits and breeze in the city. we've still got some rather wet weather just around the easte

and what if this alliance was the only means of saving the planet. we are witnessing around the word this hungry money which is only looking at how to make the next profit devastating economies devastating ecosystems putting a price on the protection of nature green economy are sound good but it was all about privatizing of nature should our environment be for sale what we're trying to do this destroyed people that stabilize the country given enough nitrogen to do that pricing the planet at this time on al-jazeera. welcome back as we look at the weather across the levant and western parts of asia conditions are generally quite fine it's not as hot as it has been across iraq iran and kuwait but relatively pleasant conditions fine around the caspian sea area around the mediterranean we've got the chance of one of two showers coming in here but for much of time the weather looking dry showers though over parts of turkey and some of those could turn to be quite heavy heading into tuesday still showers across those eastern areas now here in the arabian pen

with chris hedges the planet as the climatologist james hansen warns is out of energy balance in other words there is more energy coming in from the sun then there is he being radiated to space as long as this remains true the earth will steadily get warmer and the destructive effects of climate change monster storms flooding droughts and wildfires will become more pronounced and more deadly the human species responsible for climate change will either restore the planet's energy balance by reducing the amount of carbon dioxide in the atmosphere from its present more than four hundred parts per million to about three hundred fifty parts per million or see an acceleration of species extinction that will ultimately include human beings we face as the recent devastation in florida and houston illustrate a climate emergency we must break the stranglehold of the fossil fuel and animal agriculture industries we must improve our agricultural and forestry practices so that we capture carbon dioxide from the atmosphere and keep it in the soil and the biosphere these measures require radically re

and what if this alliance was the only means of saving the planet. we are witnessing around the word this holy money which is only looking at how to make the next profit devastating economies devastating ecosystems putting a price on the protection of nature green economy is sound good but it was all about privatizing of nature should our environment be for sale what we're trying to do is destroy people to stabilize the country given them a financial incentive to do that pricing the planet at this time on al-jazeera. howlers the main but not the only weather story in the u.s. is of course the incoming hurrican to the gulf coast now on the satellite picture of the outer bands of thunderstorms coming in but it makes landfall about midnight greenwich mean time but once it's done that bringing with it anything up to two meter surge then rapidly runs in lance's position the middle of sunday is probably somewhere in the middle of alabama now the rains ahead of it and rain is main threat once it becomes overland rawdon strength the window it will be fairly w

it is 16 years since the groundbreaking blue planet programme appeared on our screens. the first time, millions of viewers here and around the world can see the wonders of the deep ocean. now, it's back for a second series presented by, of course, sir david attenborough. for the last four years, the bbc natural history unit crews have been scouring the planet to see these aquatic animals. david shukman has been speaking to david attenborough about this series. that many questioned whether it deserved its place in the news. it certainly isn't the first time we've heard the charge of self—promotion, and the same day, breakfast featured items notjust on blue planet but several other bbc programmes, too. two decades after it first aired, sir david attenborough‘s blue planet is coming back for a second series. the team from autumnwatch back... let's speak to the presenters who are at the national trust sherbourne park estate in the cotswolds. doctor who's first female time lord will be joined by three companions. jodie whittaker takes over as the 13th doctor this year and wil

and what if this alliance was the only means of saving the planet. environmentalists like the nature conservancy are working with companies like dow chemical and many other companies sometimes people say to me mark why would you work with companies that have such a big environmental footprint and i say that's exactly why we should work with the . ecological n.g.o.s. because protecting nature is expensive and donations are not enough. some have joined forces with multinationals and signed partnership deals. they now have board members coming straight from the business sector many also recruited former employees of environmental n.g.o.s. but in this game. is influencing. now if you're in the business that coca-cola is and it's pretty easy to help them understand that they should care about nature's ability to produce the clean water they need and of course they get it. they said what kinds of investments in forests will yield the biggest returns in terms of clean water now from an old fashioned environmental perspective you might think well that's kind

and what if this alliance was the only means of saving the planet. a new level of luxury has arrived. an experience that will transform the way you try. a couple service remains but now comes breaking heat is a. revolutionary business clients. the ultra for the sea the finest. weather conducting business sharing especially. with a list of. the church that. was. trying so well. you'll centuries in the sky. reducing use. us to use. cars are always going places together. hello the weather is improving again from melbourne having had a cold day fronts going through the sun's come out now you can see it sort of a string of frontal it's way to new zealand it's when it gets new zealand things start to pick up so for australia bit of a breeze bit of rain maybe for adelaide but the reason northerly so temperatures are rising again twenty in melbourne supposed to thirteen twenty three in adelaide yes admittedly the skies will not be blue they will be wet and that rains generally speaking moving eastwards through camber towards sydney probably not into brisbane

you made the point that the newspapers covered blue planet ii that morning as well. vering it and we don't just cover bbc programmes. recently we covered the start of the crown on netflix, bake—off on channel 4, it's judged editorially, and we don't make a decision based on whether it isa make a decision based on whether it is a bbc series or not. we know there are a lot of budget cuts affecting bbc news right now, this is cheap telly, isn't it? i don't think so, there is a lot of interest in sir david attenborough, and his views, his views on british life, the environment, and climate change came across in the interview and are of interest to the audience. several items just of interest to the audience. several itemsjust in one of interest to the audience. several items just in one day. doctor who, or to watch and blue planet ii on monday alone. can you see why the viewers are frustrated? —— autumnwatch do they realise how much airtime is covered in what looks like promotions for their programmes. i do not think they were. programmes. i do not think they were. think

for the. planet yet another. company that i just said that about as giffen out of a different giffen that's actually. going to know whether. i'm in for. just one and not enough we'll move. about the other end of the company i just. had a beautiful. couple. sir . i've. been i've done some you want to. do it you know you're shooting. from home would you ditch it is the end in all of it i'm gonna go. to report. one. just one more day. to. go from. coming. home to. no one want to. go. to the. or to. be created. what you did up was among. the one you do not indulge in and. yes. and i do. know what the to devolve doesn't often i. was lucky to. get your mark of him fresh from. a contact on the front there was. no vulgar in in the muck and in g.m. not in young let me tell my. kids out until you show i don't want it to fresh i no longer know what you don't want to shock it just. yet on things you did it could turn the chicken going. on want to know when the when and what she'll. news most guns you. and it. will be indeed y

climate change is just one of the ways in which our presence on earth is profoundly altering the planet. and this new series of us rice will be exploring how to counter some of the greatest threats to survival including pollution loss of habitat drought and over consumption. from the mountains of the himalayas to the a straight out back in the hot springs of iceland we'll be looking at the impact of these global issues at the local level. we'll be bringing you stories of adaptation innovation and action from the people who are rising to the environmental challenges that we face today this is a thrice. wouldn't cut his teeth that's the status of the us. less than three percent is fresh water and most of that is frozen in glasses and polar ice caps. its leaves less than zero point no one percent readily accessible over the planet's fresh water needs. but the supply despite resources on to france from pollution mismanagement rising to mount and climate change. in just over a decade it's estimated that world will and have sixty percent of the water it needs. and we were content to conserve

this leaves less than zero point one percent readily accessible over the planet's fresh water needs. to disappear. despite resources on the threats from pollution mismanagement rising demand and climate change. in just over a decade it's estimated that world will and have sixty percent of the water it needs. and we were content to conserve it. a muscle read up come to the dark in northern india where some engineers have come up with some innovative solutions to alleviate water stress in mountain communities and i might even enjoy what we're going to take in the water crisis and to that. one another. millions of people are like directly on glass will melt water survival due to climate change these reservoirs in the sky disappearing at an alarming rate some scientists are protected by the end of the frenchie much the himalayas could be practically ice free. here in the dark which experiences only fifty millimeters of annual rainfall glasses have been a light source for centuries but due to climate change over fourteen percent of the local area has been lost in the last fifty years i'm h

the eleven year old is always thinking about the planet whether she's at school at home or out shopping. sometimes when i'm in the supermarket and i don't have a trolley or anything the shop assistant might offer me a plastic bag but i say no it's fine we can korea because we don't need one. so yes i do you think about packaging though i'm not super extreme i do normal things to practice of us likes him when he gets on he says. while. jani is convinced that small changes can lead to big ones and she hopes to infect those around her with the same enthusiasm she feels for the planet. well bring your next story which is unusual what we're talking about sanitary pads these are used by the women every month many times and they use they are disposed of but they become a nuisance to the environment because they are sometimes produced with non-biodegradable material someone in uganda decided to make a difference by producing cheap biodegradable sanitary process guess what they're using to make it should be ok let's go to uganda and see what they're working. hygiene education in a school in ugan

but the planet's metropolises are being stretched to that limit . more than half the world's population live in cities by twenty fifty despicable right. that's more than six billion people. over the next forty years cities who gobble up natural habitat. means more transport buildings more waste more pollution. many of those moving to cities and rural poor they join the one point six billion people living without adequate shelter. it's vital that you find sustainable ways to deal with this rapid at my station. where plastic waste. it's french. for in the water and i'm. poor we're striving for environmental sustainability in the face of urbanization. over three hundred million tons of plastic is produced each year with only a fraction of it being recycled much of it ends up in landfills polluting urban living environment waterways and ocean. in colombia the money is being diverted into the building blocks of a new environmental pollution. capital city of. eight million people and it is estimated that six hundred fifty tons a day is thrown away every si

the planet love love love love. love plan. how did it all on the planet ha melbourne and all. in a blizzard of three thousand six hundred metres vehicles with lighter load stand a better chance. to. hold from far off land. at minus thirty degrees the road is an ice rink the truckers must cope as best they. kids and. the know exactly. what happened. in his little truck takes a chance and manages to push through. further on they stopped to help a driver whose vehicle has broken down. with one of them and charge. with whatever her reprogram proved. gets good if you look at that. thing. is it just. is it that those are because of. what was a color of color the. job of the car could get the date. the indestructible soviet four wheel drive saves the day. the temperature drops still further at night and their guest is worried. that. in john the apostle the. boss of mark this thing they're. not. listening. what about. that because marco dick i have hope when i walk this beach there that could fulfill all markets that the mall gets getting more and more it's going to have. a breakdown

this its where the comet has smacked into the planet at such a high velocity. t of many, many millions of bombs. i would have been shoem. earth its the size of if this happened on earth we're gone. a biosphere changing ee fent. which means we would be gone. >> you can see the full report on our website. cbs news,.com. theover will be right back. recommended dulcolax. use dulcolax tablets for gentle dependable relief. suppositories for relief in minutes. and dulcoease for comfortable relief of hard stools. dulcolax. designed for dependable relief. mom i dropped my ball. got it. ewwww eat it! lysol kills 99.9% of bacteria on soft and hard surfaces. one more way you've got what it takes to protect. why don't you dry my dishes? oh, he doesn't know any better. you just need to add finish® jet-dry in the rinse aid compartment. it's there for a reason. it dries much better than detergent alone. sorry dishwasher. finish® jet-dry. for drier, shinier dishes. i'start at the new carfax.comar. show me minivans with no reported accidents. love it. [struggles] show me the carf

are is my french professor over here. 80% of the life forms in madagascar exist nowhere else on the planet. they have such rich eco logical treasures in this place, but, at the same time it is one of the poorest countries in the world. so here's the challenge. how do you protect what's left of the natural forests, the leem murs, and lift these folks out of crushing poverty at the same time? to search for clues we must weighed wade into an african-asian melting pot, tribes still divided by skin color, bloodline, and class. this was a french colony for about 60 years. but after declaring independence in 1960, there have been koos and assassinations, dictators, and failed democracy. while one crisis after another slashed and burned the economy, desperate people slashed and burned the vast majority of madagascar's forests, which is sobering because while it may look like any old jungle, [ monkeys screeching ]. >> this is the only place on the planet where you can still hear this. [animals screeching ]. >> it's like a car alarm. >> it's a siren going off basically. >> this is rainer, a german b

this its where the comet has smacked into the planet at such a high velocity. , the equivalent of many, many millions of bombs. i would have been shoem. earth its the size of if this happened on earth we're gone. which means we would be gone. >> you can see the full report on our website. cbs news,.com. i love you, droolius caesar, but sometimes you stink. febreze car vent clip cleans away odors for up to 30 days. because the things you love can stink. you're lucky you're cute. lysol max cover with 2x wider coverage kills 99.9% of bacteria. one more way you've got what it takes to protect. (cheering) a triangle solo? surprising. what's not surprising? how much money sam and yohanna saved by switching to geico. fifteen minutes could save you fifteen percent or more. ♪ get on up, mama. ♪ get on up. ♪ do what you want. ♪ do you want, let the record hop. ♪ degree motionsense. ultimate freshness... with every move. the more you move, the more it works. degree, it won't let you down. i had this chest cold, but my medicine kept wearing off. (coughah! i missed you! then

and it takes place on one of the most stunning stages on the planet. welcome to padagonia. ter magellan sailers found huge footprints on an arjen tine beach, it could be from the words portuguese for big feet. or maybe he named it after a mythical giant. either way, the monster footprint spans two countries and half a dozen ecosystems from vast steps of grass in argentina, to lush mountains in a necklace of islands over the andes and chile. it holds some of the nation's last truly wild places and very few people. see that road? that is what a national highway looks like in padagonia. see that van? that is our mystery machine on this adventure. the only taxi in chile with a driver who greets you like this. >> you just set a new standard for shuttle drivers, my brother. >> so good to be here. >> welcome to padagonia. >> this is felipe. >> i've been dreaming of this place, looking at pictures my whole life. >> actually padagonia and i go way back. i'm born and raised in santiago but my family has always been related to northern padago noor nia. i've been coming here once or twi

home of the biggest, fewurriest salmon lovers on the planet. d waiting for us here is the crew of the mv waters. >> salmon for lunch. >> salmon cakes. eat like the bears. >> want to trade lives, captain? >> on a day like today it seems pretty easy. >> in world war ii, this was a tug boat. these days it's a bear boat. were you the first guy to start running tours like this? >> i was. >> and what was the reaction when you said maybe i want to introduce tourists to brown bears? did people think you were nuts? >> no. it was kind of a natural step and for everybody that came and seen how nice it was and how reasonable it was to be around and photograph bears, for everyone of those that come, each one have 10 friends that would like to do the same thing. >> nice and reasonable, he says. okay then. let's go see. so where are we here? this is erick, a special ed teacher turned professional bear guide. >> sometimes the bears will walk on down these beaches here and right over the meadows into these grasses. >> now the rule i always heard as a young scout

with chris adams the planet as the climatologist james hansen warns is out of energy balance in other words there is more energy coming in from the sun then there is heat being radiated to space as long as this remains true the earth will steadily get warmer and the destructive effects of climate change.

but for the comprehensive nuclear test ban treaty organization, which monitorsrs r entire planet for nuclear tests, the work is far from over. to c cplete its cacapability to hear n nuclear explosisions in t world's oceans, ctbto must t fit install a h hydro-acocoustic motoring statition in one ofof e most remote places o on earth-- the ocean floor halfway between africa and antarctica. when completed, hydro-acoustic station number 4 at the crozet islands will jojoin the c ctbto internationnal monitoring system to decect and alert the woworld of n nuclear testing. jerry stanley: installing a hydro-acoustic station is a complex social engineering task. the hydro-acoustic system we're ininstalling at crozet is ononef 6 hydroro-acoustic stations. but these hydro-acoustic stations s are part of the international monitoring system, which has over 300 stations listening for potential nuclear tests arounund the globe.e. man: : 10... narrator: we proceed to develop more accurate and deststructive nuclear weaeapons. over 2,000 nuclear bombs were detonad in the last t half of the 20th century.

with chris hedges the planet as the climatologist james hansen warns is out of energy balance in other words there is more energy coming in from the sun then there is heat being radiated to space as long as this remains true the earth will steadily get warmer and the destructive effects of climate change monster storms flooding droughts and wildfires will become more pronounced and more deadly.

when i was a kid, we only knew of the planets inside our solar system, and now we know that the planetse. >> whitaker: astronomer heidi hammel specializes in hubble's work within our solar system. with the telescope, she saw huge fragments of a comet slam into jupiter, creating giant impacts. >> heidi hammel: when i first heard that a comet was going to hit jupiter, my reaction was, "eh, so what? jupiter's huge. comets are small. and so, when i saw the first impact site, and it was huge and dark, i was flabbergasted. this is where the comet has smacked into the planet, at such a high velocity that it's caused an explosion the equivalent of many, many millions of atomic bombs. the earth is the size of that ring. and so, if this event had happened on earth, it-- >> hammel: yeah, we call that a biosphere-changing event, which basically means we'd be gone. >> whitaker: hubble orbits high, outside earth's atmosphere, so it can see a wide spectrum of light our atmosphere blocks. beyond earth's protective layer, hubble's ultraviolet camera can spot dazzling displays like this glowing halo on t

but for the comprehensive nuclear test ban treaty organization, which monitotors r entire planet for nuclear tests, the work is far from over. totoomplete its s capability too hearar nuclear explolosions inhe world's oceans, ctbto musust fit install a a hydro-a-acoustic nitoring statation in one e of e most remote placeses on earth-- the ocean floor halfway between africa and antarctica. when completed, hydro-acoustic station number 4 at the crozet islands will l join thehe ctbto internatioional monitoring system toetetect and alert the e world ofof nuclear testing. jerry stanley: installing a hydro-acoustic station is a complex social engineering task. the hydro-acoustic system we're installing at crozet is s one of 6 hydydro-acoustic stations. but these hydro-acoustic stationons are part of thee international monitoring system, which has over 300 stations listening for potential nuclear tests aroround the globobe. manan: 10... narrator: we proceed to develop more accurate and dedestructive nuclear w weapons. over 2,000 nuclear bombs were detoted in the lasast half of the 20thth cent