:00:18. > :00:21.Hi there. Welcome along to Tuesday's Newsround. We're live
:00:21. > :00:24.just after 5pm. I'm Ricky. And I'm Hayley. We've got something for
:00:24. > :00:30.everyone today, including all this. The 800-year-old castle that's had
:00:30. > :00:35.a makeover. And, we've got more on Prince
:00:35. > :00:38.Harry's mission with four soldiers to the top of the world.
:00:38. > :00:41.But first, wherever you live, you won't be very far from a river.
:00:41. > :00:45.They're home to wildlife, some people live on them, and they make
:00:45. > :00:48.up an important transport network. Until recently, many of our rivers
:00:48. > :00:52.were dirty and polluted, but after years of hard work and a mammoth
:00:52. > :00:57.clean-up operation, they're in a much better shape. Today, a new
:00:57. > :01:00.list reveals the rivers that are making a cleaner comeback.
:01:00. > :01:04.Back in the olden days, rivers weren't always the nicest places to
:01:04. > :01:09.hang around. Britain's waterways used to be a dumping ground for
:01:09. > :01:14.anything and everything. During London's Great Stink in 1858, the
:01:14. > :01:18.River Thames was like London's toilet. It stank so badly that
:01:18. > :01:23.Parliament was suspended! Fast- forward 100 years to the 1950s, and
:01:23. > :01:28.things weren't much better. The River Wandle in South-West London
:01:28. > :01:36.used to be known as a sewer. Dark and horrible and full of industrial
:01:36. > :01:39.waste. But now, it's a haven for fish and birds. The Environment
:01:39. > :01:46.Agency says Britain's rivers are the healthiest they've been in 20
:01:47. > :01:51.years. We have looked at the amount of water being taken from rivers
:01:51. > :01:56.reduced, we have reduced pollution substantially, and we are looking
:01:56. > :02:02.at opening up the rivers so that they are the natural corridors for
:02:02. > :02:05.wildlife. Included in their most- improved list is the River Taff in
:02:06. > :02:08.South Wales, which the EA says once ran black with coal dust, but is
:02:08. > :02:10.now a site for fishing competitions. And the River Stour in
:02:11. > :02:13.Worcestershire, which was once famous for the polluting rainbow-
:02:13. > :02:17.coloured dyes that flowed into it from carpet manufacturers. London's
:02:17. > :02:20.River Thames is also on the list. It was so dirty 60 years ago that
:02:20. > :02:24.nothing could live in it. But it's now teeming with fish, otter and
:02:24. > :02:30.sea trout. And next week it'll be home to comedian David Walliams for
:02:30. > :02:32.eight days as he tries to swim 140 miles along it for Sport Relief.
:02:32. > :02:36.Although he has had lots of injections to protect him against
:02:36. > :02:39.diseases. It's all good news, but the Environment Agency hopes to
:02:39. > :02:44.transform another 9,500 miles of river, so there's still a bit of
:02:44. > :02:47.work to be done. And we just have to stress that
:02:47. > :02:50.David Walliams is swimming in the Thames, but only after lots of
:02:50. > :02:59.advice and jabs. Although lots of rivers are now fine for wildlife,
:02:59. > :03:06.they're not all OK for humans. Graffiti is not usually a word you
:03:06. > :03:11.would associate with history, but look at this building. This Castle
:03:11. > :03:14.is covered in graffiti. The owner of the castle originally planned
:03:14. > :03:22.for the art work to be a temporary think, but he liked it so much, he
:03:22. > :03:27.wants it to stay. If you are a fan of Arsenal, you
:03:27. > :03:31.will want to forget about the weekend. They were thrashed by
:03:31. > :03:34.Manchester United. There are still some supporters, but some of the
:03:34. > :03:42.disappointed fans who travelled to the match have been offered free
:03:42. > :03:49.tickets as an apology. What should happen next to Arsenal?
:03:49. > :03:54.Terrible. They should have done more passing and teamwork. Arsene
:03:54. > :04:00.Wenger has not bought any good players. We might not do well in
:04:00. > :04:07.the season. Arsenal should use the money they got by selling it Cesc
:04:07. > :04:15.Fabregas for better players. They need to do a bit better than now.
:04:15. > :04:17.thought they would have done better. Especially as they passed Games in
:04:17. > :04:24.the Premier League against Manchester United have been very
:04:24. > :04:29.exciting, but this was a bit one- sided. They can do really well, but
:04:30. > :04:32.the match was a big fail for them. Well, there's a bit of a
:04:32. > :04:36.north/south divide going on here, actually. Yeah, I was actually at
:04:36. > :04:39.the football game we speak of. Oh, yeah. I saw all the action from the
:04:39. > :04:43.sidelines. Well, I think it's clear the best team won. I think some
:04:43. > :04:50.people may disagree with you on that. But we want to know what you
:04:50. > :04:55.think about Arsenal's future. Head over to our website and let us know.
:04:55. > :05:00.It has not been a brilliant day for Jessica Ennis. She failed to defend
:05:00. > :05:05.her title at the World Athletics Championships. She won a silver
:05:05. > :05:08.medal, but she lost out to Russia's Tatyana Chernova.
:05:08. > :05:11.Earlier this year, Prince Harry teamed up with a group of soldiers
:05:11. > :05:14.who were badly injured in Afghanistan to try to do the first
:05:14. > :05:18.unsupported trek to the North Pole by wounded servicemen. Their every
:05:18. > :05:27.move was followed by a film crew, and a documentary of the trek is on
:05:27. > :05:31.BBC One tonight. Leah got a sneak preview.
:05:31. > :05:34.It is 2:50am, the team and Prince Harry have just landed at Ice
:05:34. > :05:41.Station, of ready to start their mission. It is the first time they
:05:41. > :05:48.have been anywhere near this. standing on a floating ocean, it is
:05:48. > :05:58.called! From here, a helicopter ride to a 0.160 miles from the
:05:58. > :06:00.
:06:00. > :06:06.North Pole. It is still liked. My body clock is in disarray. It is
:06:06. > :06:12.solid cloud, and minus 28 in the wind. They land on more eyes, and
:06:12. > :06:20.the adventure begins. When the ice breaks up, it forms a mini mountain
:06:20. > :06:30.ranges. They are a messy mix of rocky ice piled on top of each
:06:30. > :06:30.
:06:30. > :06:34.other. My skis are coming off, we are crossing something bigger.
:06:34. > :06:40.person who lost his leg while serving in Afghanistan found it
:06:40. > :06:47.difficult to negotiate. It is difficult terrain. It is hard work.
:06:47. > :06:53.But we just have to deal with it. For the people who have missing or
:06:53. > :06:57.damaged arms, it is pretty challenging. Steve needs to be
:06:58. > :07:02.careful, he has got a back injury, and having a prince Harry is a big
:07:02. > :07:06.help. Everybody is helping everybody, it is the only way.
:07:06. > :07:09.team are hoping to raise more than �2 million for charity to help
:07:10. > :07:18.other injured servicemen. And Harry's Arctic Heroes is on
:07:18. > :07:23.tonight on BBC One at 9pm. This is a volcano erupting in Italy.
:07:23. > :07:28.Mount Etna is one of the most active volcanoes in the world. It
:07:28. > :07:31.started erupting eight days ago and it recently became even more
:07:31. > :07:34.explosive, which is why we can give you these pictures.
:07:34. > :07:37.Before we go, we've already had some comments in on what Arsenal
:07:37. > :07:40.Football Club should do next. 13- year-old Claudia, all the way from
:07:40. > :07:43.Jakarta in Indonesia, says Arsenal should buy more players. That can