03/07/2014 Newsround

Ayshah here with the people who've been living under water

We've got the schoolgirl weightlifter heading

to the Commonwealth Games live in the studio.

But, first, to the major dust storms hitting parts of America.

The US State of Oklahoma is being affected by huge walls of dust

that are destroying crops and could drive people out of their houses.

The area is in the middle of a three year drought

and the storms are being caused by high winds picking up dry soil

Now to the Yorkshire schoolgirl who's

raising the bar, quite literally, in the world of weightlifting.

15-year-old Rebekah Tiler is the youngest ever athlete to win

gold at the British Weightlifting Championships.

Not only that, she's broken more than 100 British records and she's

preparing for the Commonwealth Games later this month.

We'll speak to Rebekah in a moment but let's take a look

Gold medal 2014! Welcome to the studio. You have just seen when you

won the title. That was against the seniors. How did you get to be so

strong? I got tested. Full. -- I got tested for strength. I had weights

that were 50 kilograms. Now you can lift 123 kilograms. That is to me,

basically. How do you train and go about it? I train five times a week.

I have to stick to a pretty good diet. Chicken, steak, lots of

vegetables. Why W also have three sisters as well who have been

inspired by what you have done. -- you also have three sisters. They

all do weightlifting and they are British champions as well. You can

feel the weight but it does not hurt. How did you manage to get so

strong? I did some body-building with my dad. Sprinting down the

track with weights, it has built my strength up. Why do you have the

Commonwealth Games in July. How much are you looking forward to that? It

will be really good, a good experience. The butcher has tickets!

Thank you very much for coming in. And also for being so strong. Best

of luck to you. But it wasn't to be for Andy Murray,

who crashed The defending champion was beaten

in straight sets by Bulgarian Gregor Dimitrov

after making lots of errors. He says he enjoyed his time as

champion and will be back next year. Seven- time champion Roger Federer

is through to the semis after beating Australian Open champ

Stan Wawrinka. Novak Djokovic is also through

but Australian teenager Nick Kyrgios Well, after nearly two weeks

of competition, you might have noticed the Wimbledon lawns are

still looking pretty good. There's an impressive 41 tennis

courts at the All England club and Ricky has been to meet

the man who looks after them. Wimbledon is the only grand slam

tennis tournament that actually is played on grass. Throughout the

championships, those two weeks, more than 40 people maintain the grounds

to make sure it is spot-on. Neal has worked here for 20 years. He makes

sure the grass is no longer than eight millimetres in height. Why is

that important? It is just so it is fair and equal for everyone. If the

court is as flat as you can, you will not get dodgy ball bounces.

Players will expect the ball to come up at a certain point. If it is too

long, that might not happen. In Brazil, they have had to spray paint

the grass green. We have not had to do that yet. This is all natural.

The grass has to be eight millimetres in length. How do you

check that? The machines are very hi-tech. Mechanics will set them

with a digital bar. They are checked each morning. I have my ruler. Just

checking. Eight millimetres in length. There are 54 million strands

of grass alone here on Centre Court. Come back next week and I might have

finished by then. A team of ocean explorers has

broken the record for the longest Fabien Cousteau

and two colleagues lived for 31 days in an underwater science lab,

off the Florida Keys in America. They were investigating

the effects of climate change That's all from me. Newsround's back

right here this afternoon.