since the mid—‘9os they've produced enough water to fill the grand canyon. to a study released today has put it f— l--- blended approach. so f— w”  is all down to higher temperatures in the ocean and warned of the consequences of climate change and increasing melting of the ice. our science and environment realisation with this arrest today. as sienna pointed out this only came correspondent victoria gill has more. in at the end ofjune and already a ice shelf seems a very humble term for the huge masses of floating ice little over a month later we are surrounding antarctica. seeing this high profile arrest which i think is setting a marker and to study these vast frozen platforms, scientists had to zoom right out into space. down to all people in hong kong and using satellites to make precision the protesters over there. a big measurements of the thickness of the ice shelf showed that in 25 thing ina the protesters over there. a big thing in a lot of the papers, years, it lost enough mass to fill national and international, is the grand canyon with water. school and the return of pupils to the ice shelves we see melting in this study are not going to raise schools at various stages of the to sea level in themselves because they're actually already lock and various flare—ups. let's go sitting in the water. to the philippines. no stopping the they're already floating. the sea level rise comes when those august 2a opening of classes. if you ice shelves reduce the restraint said no stopping the opening in that they exert on the rest september it can be the same of the antarctic ice sheet, headline over here. absolutely. they which then flows faster refuse pressure on the government into the ocean, causing here to get that all open in sea level rise. september. this story in the

the effects of all this cold, fresh water entering the deep sea philippines about how the classes are opening on - 24. but around antarctica are likely to be felt far beyond the polar south. the ocean plays a major role in just controlling the climate around the world. adding a lot of cold, fresh water to the ocean changes the way it can transport heat. and that can change global climate and maybe, potentially, even change rainfall patterns around the world, as well. is that what scientists mean when they describe antarctica as the world's thermostat? that what happens to that ice and in that ocean is shifting weather patterns all around the world 7 yeah, exactly. with many of the world's biggest cities by the coast, modelling future sea—level rise accurately is crucial. this study reveals just how much of that accuracy depends on understanding what's happening to the ice at the end of the world. victoria gill, bbc news.

football, and manchester united's match against fc copenhagen — in the quarterfinals of the europa league — has gone to extra time after a 0—0 scoreline at the end of the 90 minutes. andy swiss has been watching the game. the start of a frantic fortnight of football to decide the european honours. first up, manchester united against copenhagen, in cologne, in germany, where the europa league is being completed. confused? well, united certainly were, with some pretty wobbly defending early on and then frustration at the other end. mason greenwood thought he had put them ahead. but he was just offside. it summed up united's first half. and guess what? just after the break, they had another goal ruled out, this time marcus rashford the man offside and when bruno fernandes then thumped the post, united must have wondered if it was one of those nights. still copenhagen defied the odds. anthony martial brilliantly denied. still goalless after 90 minutes

and it was into extra time. when finally united broke the deadlock — martial fouled, penalty awarded and fernandes ruthlessly dispatched it. united battling to keep their european hopes alive. andy swiss, bbc news. the score remains 1—0 to manchester united. that's it. now on bbc one, time for the news where you are. have a very good night. hello to viewers in the uk joining those around the world. it's now time for us to take a first look at the national and international front pages in the papers.

hello, and welcome to our look ahead to what the the papers will be bringing us tomorrow. with me is the editor of labourlist, sienna rodgers, and sam lister, the daily express‘s deputy political editor. welcome deputy political editor. to you both. let's look at what welcome to you both. let's look at what has already come insofar. the telegraph reports the uk's test & trace system will be scaled back following warnings that the service is reaching fewer than half of those at risk of contracting covid—19. the same story is on the front of the daily mail, which says people who fail to answer repeated phone calls from the nhs test & trace service could now face a knock on the door. the i features the results of a poll which shows two thirds of families in the uk are worried about sending their children back to school next month. prime minister borisjohnson has

vowed all english pupils will return to school when the new term starts. well, the start of the school year in the united states has been "marked by chaos". that's according to the washington post, which reports plans are changing so fast that students and parents can hardly keep up. the times writes secondary school pupils are likely to transmit coronavirus as easily as adults, with scientists at public health england saying tougher rules might be needed for older children. the japan times covers the arrest of hong kong media tycoonjimmy lai. the prominent democracy activist was detained over suspected collusion with foreign forces under a new national security law. and the metro features a story about a mob of anti—mask activists who told shoppers in a london supermarket to remove their face coverings

and to resist what they called "a new world order". so, let's begin. actually let's start with a foreign story if we may. the arrest ofjimmy lai which will cover in about half an hour here on abc news and get reaction on that. this man was a very vocal critic of china and had beenin very vocal critic of china and had been in their sites for a long time. but a very public arrest. absolutely. this is about the new national security law in hong kong. he was brought in at the end of jeans and we are now starting to see some of the effects of that. very public arrest. basically the law is about punishing anything that china considers to be subversion or terrorism or collusion with foreign forces. with up to life in prison and there are a lot of critics of that law which was not seen the full

text of it before it was passed actually. they are saying it will be used to clamp down on press freedom, freedom of speech generally in any kind of activism which is basically the point. the defenders will state it is to bring stability to the region. in this law, some trials will be heard behind closed doors. people have suspected of breaking the law can be wiretapped and put under surveillance and it also applies to people from outside of hong kong. which means you can go to hong kong. which means you can go to hong kong. which means you can go to hong kong and be stalked as you are going in. so this arrest of a media tycoon who is a prominent critic of beijing of course. the police searched the offices of his apple daily newspaper. the staff that they are defiant in the face of what they are defiant in the face of what they are doing with the law. by doing

this a publicly this is a real public warning to others. interesting in terms of the british response to this national security law and indeed other countries around the world. a lot of criticism and official cruises and from governments but china really not backing down on this is if they don't really care at all. china absolutely is not backing down. we have tried to put pressure to bear oi'i have tried to put pressure to bear ona have tried to put pressure to bear on a country the government has obviously offered passports to british nationals and for people in hong kong. that was really, really taken quite badly in- but