26/10/2016 Newsround

Hey, everyone, Leah here with today's Newsround.

We meet the scientists checking air pollution from the sky.

How cool is it being a world champion surfer?

And oven gloves at the ready - tonight's the final of Bake Off!

But first, it's here tonight, it's the final

of The Great British Bake Off and with this year's Royal Theme,

Candice, Andrew and Jane will be getting their best whisking spoons

So joining me on the sofa now is last year's Junior Bake Off winner

Amari to give us her thoughts on the final.

first of all, who do you think will win? I am jumping between Candace

and Jane. They are all good bakers, but it will be one of them. What do

you have to do to become champion Becker? You have to be a good break

out, but it is also the personality and your creative skills to go with

it as well. If you do not have that, I don't think it will win. So much

goes into it. Overall, looking at the series, who has been the

standout personality or the contestant you enjoy watching the

most? And what makes them so good? You

just need to keep calm. With him being so calm, he got to the

semifinals. I have learnt a few tips about baking and I would like to try

and make what they have made. Thank you so much. Brilliant having you

here. You can head online for loads more

good stuff about Bake Off, including We also want to know who you think

should win Bake Off tonight? Get in touch and we'll read out some

of your comments later on. Now, when it comes to pollution

you might think of things down here on the ground like car fumes

and factories, but to find out more about how clean the air

in our cities actually is, This is one of the most advanced

scientific aircraft in the world. It is this plane's job to measure

the amount of air pollution there is in cities across the UK

and I'm about to hop on board from East Midlands to Manchester

to see how it works. On the outside it might look

like an ordinary aeroplane, but on the inside it is

a high-tech chemistry lab. On board I spoke to one of the lead

scientists to find out more. James, what are we doing

on this aircraft today? We are flying off the coast

of Liverpool and Manchester. The wind is currently blowing

all the pollution that gets emitted from cars and factories and things,

it is blowing it over the sea and we are crossing that plume

of pollution trying to measure how What we are doing here is trying

to understand better where this pollution is coming from,

how much is being emitted and then going forward how to better inform

people as to how we can improve James, how unique is this aircraft

in what it does? It is the largest one in Europe

and it is pretty much Compared to other aircraft

around the world it is We have got a few bits of equipment

out hanging beneath the wings that measure things like clouds as we go

through them and we have also got quite a lot of equipment

inside the aircraft cabin. The air is being sucked

through and our instruments are providing a measurement

of the different air pollutants. There is a lot of high-tech

equipment being flown around The leaves are brown outside so that

can mean only one thing - The show's team are in Dorset

all week, in the south of England, and here are the presenters to tell

you what they're up to. Yes, we are back and this year

we are at the RSPB reserve at Arne in Dorset which is a fabulous place

to be at this time of the year. One of the amazing sights

is all the birds that arrive, the migrating waders, that come

to overwinter on the wetlands. We have got deer fighting

and calling in the night. We have seen foxes, badgers,

rabbits, mice, everything. And if you get out and about this

time of year you might find one of these because the deer

shed their antlers. So enjoy Autumn Watch and get out

there and enjoy autumn. And finally to one of the biggest

surfing competitions ever. It's held in portugal and top surfer

John-John Florence is officially the best after wining the 2016 World

Championship. The tournament hasn't even finished

but John has so many points That's all from me, Newsround's back

at 4.20.