:00:00. > :00:10.Ricky here with Tuesday's top stories coming up on Newsround.
:00:11. > :00:14.The invention that could make your doing smarter and, the breath-taking
:00:15. > :00:22.skills you need to win in this Championship.
:00:23. > :00:27.First, Antarctica is the earth's coldest spot and a hugely important
:00:28. > :00:32.place. What happens there can affect the rest of the world. There are
:00:33. > :00:35.some big changes going on there. Scientists say six giant glassiers
:00:36. > :00:40.are melting and they don't think they can be stopped. I've found out
:00:41. > :00:43.why they are worried. Antarctica, the coldest place on
:00:44. > :00:47.earth and land of frozen beauty. Behind this incredible landscape, a
:00:48. > :00:53.huge change is occurring. These masses of ice in western Antarctica
:00:54. > :00:59.are melting. One glassier here can be nearly as big as the UK. Over the
:01:00. > :01:03.last 40 year, NASA scientists have used satellites, aeroplane, ships
:01:04. > :01:07.and ground surveys to study the area and say that six glassiers here are
:01:08. > :01:12.melting away and that nothing can be done to stop it.
:01:13. > :01:17.It's due to climate change caused by people.
:01:18. > :01:20.Scientists say we have burnt a lot of old, coal and gas and this has
:01:21. > :01:25.been putting particularly carbon dioxide into the atmosphere. That's
:01:26. > :01:29.warmed it and it's changed the way the atmosphere behaves. It's
:01:30. > :01:33.starting to blow faster. The winds are getting stronger, particularly
:01:34. > :01:37.around Antarctica. That is pushing warm water towards the continent.
:01:38. > :01:43.It's eroding, it's melting the fronts of the glaciers. Scientists
:01:44. > :01:46.say the radar shows there are no ridges to top them from retreating
:01:47. > :01:50.further inland. Because they are melting, more water is flowing into
:01:51. > :01:54.the ocean which is having an impact on global sea-levels. A danger to
:01:55. > :02:00.animals and people living on low-lying land near the coast.
:02:01. > :02:04.Some of the gl laciers is huge. If you were to stand on top of them,
:02:05. > :02:09.there would be ice as far as the eye could see. If they melt, all the
:02:10. > :02:12.that water will go into the ocean and raise sea-levels which is a
:02:13. > :02:15.problem for cities on coastlines because they will have to cope with
:02:16. > :02:19.that and make changes to the way they build their cities in the
:02:20. > :02:23.future. The scientists behind the research say the situation is a
:02:24. > :02:28.major concern, but they say it could take hundreds of years for the
:02:29. > :02:31.effects to be felt. We are talking about your doings
:02:32. > :02:34.next and how smart they are. You have been telling us on the website
:02:35. > :02:37.how clever your pets are and the tricks they can do. Thanks to a
:02:38. > :02:40.group of students in America, your doings could soon be getting even
:02:41. > :02:46.smarter thanks to a brand-new invention. We sent Martin off to
:02:47. > :02:50.sniff this one out! What is the clevers thing you have taught your
:02:51. > :02:54.doing to do? Beth in Solihull says her doing can roll over and catch a
:02:55. > :02:59.ball in the air and Katie from Cape Town in South Africa told us that
:03:00. > :03:03.her doing can open doors. Two students in America think they
:03:04. > :03:08.may have found a way to make doings even smarter.
:03:09. > :03:11.They have invented this digital feeder which rewards doings with
:03:12. > :03:17.treats if they tap censors in the correct order. The instructions are
:03:18. > :03:22.easy. Touch any pad and then it gets reward. It learns over time that if
:03:23. > :03:27.it touches a pad it will get a reward. Once they have got that bit,
:03:28. > :03:33.you make it a bit tougher and make them touch a specific pad and maybe
:03:34. > :03:43.pads in order or we give them a cue, and it's your voice saying, "press
:03:44. > :03:48.the left one". Doings are able to remember different instructions and
:03:49. > :03:54.can work out challenges before the rewards are even given. Sit. How do
:03:55. > :03:58.you do. The inventors say it's not stressful for dogs and only becomes
:03:59. > :04:02.more challenges the more t used. So maybe you could try teaching your
:04:03. > :04:08.doing new tricks. You never know, it could be smarter than you think.
:04:09. > :04:10.Sport and Tottenham have sacked manager Tim Sherwood after the club
:04:11. > :04:16.finished sixth in the Premier League. He only took the job in
:04:17. > :04:19.December and signed what deal to the end of next season. Next to the
:04:20. > :04:23.Championship that's in a glass of its own. Every year, more than 20
:04:24. > :04:27.people take part in the glass-blowing Championships in
:04:28. > :04:31.Finland. They have to try and create the biggest cylinder or plate in
:04:32. > :04:36.under six minutes. Yosef from Hungary blew away the competition
:04:37. > :04:40.with this breath-taking skill. Finally, get online and tell us if
:04:41. > :04:44.your smartphones and tablets keep you up at night. According to
:04:45. > :04:50.scientists, certain gadgets release a blue light which can confuse the
:04:51. > :04:56.brain and make us stay up lighter, which may have an impact on our
:04:57. > :05:00.sleep patterns due to the body clocks. Join me later. Bye.