30/08/2011 Newsround

Hi there. Welcome along to Tuesday's Newsround. We're live

just after 5pm. I'm Ricky. And I'm Hayley. We've got something for

everyone today, including all this. The 800-year-old castle that's had

a makeover. And, we've got more on Prince

Harry's mission with four soldiers to the top of the world.

But first, wherever you live, you won't be very far from a river.

They're home to wildlife, some people live on them, and they make

up an important transport network. Until recently, many of our rivers

were dirty and polluted, but after years of hard work and a mammoth

clean-up operation, they're in a much better shape. Today, a new

list reveals the rivers that are making a cleaner comeback.

Back in the olden days, rivers weren't always the nicest places to

hang around. Britain's waterways used to be a dumping ground for

anything and everything. During London's Great Stink in 1858, the

River Thames was like London's toilet. It stank so badly that

Parliament was suspended! Fast- forward 100 years to the 1950s, and

things weren't much better. The River Wandle in South-West London

used to be known as a sewer. Dark and horrible and full of industrial

waste. But now, it's a haven for fish and birds. The Environment

Agency says Britain's rivers are the healthiest they've been in 20

years. We have looked at the amount of water being taken from rivers

reduced, we have reduced pollution substantially, and we are looking

at opening up the rivers so that they are the natural corridors for

wildlife. Included in their most- improved list is the River Taff in

South Wales, which the EA says once ran black with coal dust, but is

now a site for fishing competitions. And the River Stour in

Worcestershire, which was once famous for the polluting rainbow-

coloured dyes that flowed into it from carpet manufacturers. London's

River Thames is also on the list. It was so dirty 60 years ago that

nothing could live in it. But it's now teeming with fish, otter and

sea trout. And next week it'll be home to comedian David Walliams for

eight days as he tries to swim 140 miles along it for Sport Relief.

Although he has had lots of injections to protect him against

diseases. It's all good news, but the Environment Agency hopes to

transform another 9,500 miles of river, so there's still a bit of

work to be done. And we just have to stress that

David Walliams is swimming in the Thames, but only after lots of

advice and jabs. Although lots of rivers are now fine for wildlife,

they're not all OK for humans. Graffiti is not usually a word you

would associate with history, but look at this building. This Castle

is covered in graffiti. The owner of the castle originally planned

for the art work to be a temporary think, but he liked it so much, he

wants it to stay. If you are a fan of Arsenal, you

will want to forget about the weekend. They were thrashed by

Manchester United. There are still some supporters, but some of the

disappointed fans who travelled to the match have been offered free

tickets as an apology. What should happen next to Arsenal?

Terrible. They should have done more passing and teamwork. Arsene

Wenger has not bought any good players. We might not do well in

the season. Arsenal should use the money they got by selling it Cesc

Fabregas for better players. They need to do a bit better than now.

thought they would have done better. Especially as they passed Games in

the Premier League against Manchester United have been very

exciting, but this was a bit one- sided. They can do really well, but

the match was a big fail for them. Well, there's a bit of a

north/south divide going on here, actually. Yeah, I was actually at

the football game we speak of. Oh, yeah. I saw all the action from the

sidelines. Well, I think it's clear the best team won. I think some

people may disagree with you on that. But we want to know what you

think about Arsenal's future. Head over to our website and let us know.

It has not been a brilliant day for Jessica Ennis. She failed to defend

her title at the World Athletics Championships. She won a silver

medal, but she lost out to Russia's Tatyana Chernova.

Earlier this year, Prince Harry teamed up with a group of soldiers

who were badly injured in Afghanistan to try to do the first

unsupported trek to the North Pole by wounded servicemen. Their every

move was followed by a film crew, and a documentary of the trek is on

BBC One tonight. Leah got a sneak preview.

It is 2:50am, the team and Prince Harry have just landed at Ice

Station, of ready to start their mission. It is the first time they

have been anywhere near this. standing on a floating ocean, it is

called! From here, a helicopter ride to a 0.160 miles from the

North Pole. It is still liked. My body clock is in disarray. It is

solid cloud, and minus 28 in the wind. They land on more eyes, and

the adventure begins. When the ice breaks up, it forms a mini mountain

ranges. They are a messy mix of rocky ice piled on top of each

other. My skis are coming off, we are crossing something bigger.

person who lost his leg while serving in Afghanistan found it

difficult to negotiate. It is difficult terrain. It is hard work.

But we just have to deal with it. For the people who have missing or

damaged arms, it is pretty challenging. Steve needs to be

careful, he has got a back injury, and having a prince Harry is a big

help. Everybody is helping everybody, it is the only way.

team are hoping to raise more than �2 million for charity to help

other injured servicemen. And Harry's Arctic Heroes is on

tonight on BBC One at 9pm. This is a volcano erupting in Italy.

Mount Etna is one of the most active volcanoes in the world. It

started erupting eight days ago and it recently became even more

explosive, which is why we can give you these pictures.

Before we go, we've already had some comments in on what Arsenal

Football Club should do next. 13- year-old Claudia, all the way from

Jakarta in Indonesia, says Arsenal should buy more players. That can