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around that time, scientists learned something extraordinary. whales were communicating with each other. sometimes by song over long distances. in part, because of that discovery, scientists and conservationists rallied to enact laws to protect the whales and it worked. the humpback whale population has made a remarkable comeback. now they face a host of new threats. global warming is killing off their food source and human activity is causing thousands of whale deaths a year from the stress of underwater construction noise to fishing entang amments and ship collisions. in the next hour, cnn s bill weir takes us to antarctica, a place very few get to visit to study these remarkable creatures and show us why saving the whales may also be saving the planet. because they are one of our best partners in battling climate change. reporter: those are the songs of humpback whales, flying about 15 billion miles away from earth, on the off chance intelligent life out there wa ....
50 years ago humpback whales were considered an endangered species after decades of commercial whaling decimated the population. around that same time scientists learned something extraordinary. whales were communicating with each other, sometimes by song over long distances. in part because of that discovery scientists and conservationists rallied to enact laws to protect the whales, and it worked. the humpback whale population has made a remarkable comeback. but now they face a host of new threats. global warming is killing off their food source, and human activity is causing thousands of whale deaths a year. from the stress of underwater construction noise to fishing entanglements and ship collisions. in the next hour cnn s bill weir takes us to antarctica, a place very few people get to visit, to study these remarkable creatures and show us why saving the whales may also be saving the planet. because they are one of our best partners in battling climate change. re ....
the consumer electronics show. now, it takes place across the city in hotels like this and also in the massive las vegas convention center. this is where we get a taste of the tech trends to come for the new year. and over the years, we have seen it all here autonomous cars going up and down the strip, even a flying one on the sidewalk. so what s going to be big this year? it is time to find out. the self proclaimed most powerful tech show on earth truly is global, with companies from around the world battling for attention and some splashing out to make a real spectacle. there s even a mini theme park in one of the halls this year, with a hydrogen powered train that goes. ..all of a few metres. so lovely of them to name it after me too! i think that s a different sk. 0h, 0k. but after a year of tech hitting the headlines, often for the wrong reasons, there s no existential crisis here. the buzz is back. dance music plays. ..the party s pumping, and ces is a scramble ....
whose supporters shout racist abuse. now on bbc news, click. hello and welcome to las vegas, sin city, home to big casinos, big hotels and big entertainment. and everyjanuary, it s also home to big tech because this is where ces happens, the consumer electronics show. now, it takes place across the city in hotels like this and also in the massive las vegas convention center. this is where we get a taste of the tech trends to come for the new year. and over the years, we have seen it all here autonomous cars going up and down the strip, even a flying one on the sidewalk. so what s going to be big this year? it is time to find out. the self proclaimed most powerful tech show on earth truly is global, with companies from around the world battling for attention and some splashing out to make a real spectacle. there s even a mini theme park in one of the halls this year, with a hydrogen powered train that goes. ..all of a few metres. so lovely of them to name it after me t ....
like this and also in the massive las vegas convention center. this is where we get a taste of the tech trends to come for the new year. and over the years, we have seen it all here autonomous cars going up and down the strip, even a flying one on the sidewalk. so what s going to be big this year? it is time to find out. the self proclaimed most powerful tech show on earth truly is global, with companies from around the world battling for attention and some splashing out to make a real spectacle. there s even a mini theme park in one of the halls this year, with a hydrogen powered train that goes. ..all of a few metres. so lovely of them to name it after me too! i think that s a different sk. 0h, 0k. but after a year of tech hitting the headlines, often for the wrong reasons, there s no existential crisis here. the buzz is back. dance music plays ..the party s pumping, and ces is a scramble of people, products and predictions for our future lives. everything you could ....