21/10/2013 Newsround

Hello there, hope you're having a lovely Monday. Ricky here with the

best stories of the day. On the way... How masses of supermarket

food is never eaten and ends up in the bin. And... A blanket of smog

almost shuts down a Chinese city. First to a warning that many of you

are taking too many risks online. A new survey suggests that children

are sharing too much personal information on the Web. Experts now

say parents should get more invlved with the technology you guys are

using to help keep you safe. Here's Martin.

How do you know who you're talking to online is really who they say

they are? You're always being told never to meet up with a stranger in

the street, but a survey of 0- to to 11-year-olds suggests some of you

are doing just that via the internet. Campaigns like this one

are designed to show children the dangers of chatting to people they

don't know online. But the charity Safe and Secure Online say that too

many kids are taking too many risks and using the internet late into the

night. It surveyed more than 1, 00 children. 18% - that's nearly one in

five - said they had met, in real life, friends they had previously

only known online. night. It surveyed more than 1, 00

children. 22% had been online after 9pm on a school night. And 12% had

missed school after a late night on the internet. Youngsters actually

participate in a lot of risky behaviours that I don't believe the

parents know about. Not because of any ill will on behalf of the

parents, it's just that the parents do not understand the technology.

This primary school in Kent is taking part in a special class about

the dangers of the internet. I spoke to kids in Salford. I have got a

friend who is on Facebook. Someone said, can you meet me in some place?

My sister had to delete her account because somebody was texting her

that she did not know. My mum always says, anything could happen. You can

find out more about how to stay safe online on the Newsround website

Next to Australia, where it is feared huge bush fires in New South

Wales could merge to form a massive wildfire covering hundreds of

kilometres. Hundreds have been forced to leave their homes as a

state of emergency is declared. I've been keeping across the latest on

this today. New South Wales, Australia. Firefighters are battling

more than 56 separate blazes spreading across hundreds of

kilometres. The huge wildfires that started this weekend are being

described as some of the most destructive ever to hit the state.

Australia is no stranger to wildfires. As we head into winter,

Down Under, Australians are gearing up for summer. And as the

temperatures rise between December and February, the risk of forest

fires increases. These fires are a danger Australians are all too aware

of. Back in 2009, I travelled to the country in the wake of their worst

bushfires ever. We were escorted by police to see what was left behind.

We saw just some of the homes that had been destroyed and met children

who had lost all their possessions. Many lives were lost - 173 people

died in those fires four years ago, others managed to get away in time.

We left on Saturday - saved our lives probably. Today, emergency

services are trying to get the situation under control. Fire

fighters are containing the blazes by deliberately setting small fires

to trees and by deliberately setting small fires

stop the larger fires from raging out of control. When wildfires reach

areas that have already been burnt off by

areas that have already been burnt spread any further. A police

investigation is already under way to find out whether these fires

could have been started deliberately. The biggest challenge

facing authorities right now is getting these huge fires under

control. Next we're talking about throwing

away food. Supermarket Tesco revealed it threw away nearly 3 ,000

tonnes of food in the first six months of this year. It also

estimated that nearly half of all apples and baked goods bought are

thrown away in the UK as well as one in ten bananas. Loads of unused

salad is also chucked. Tesco is now looking at ways to stop so much

going to waste. Online, we've been asking if lots of food in your house

gets thrown out. Olivia from Northern Ireland says... But

Shemakay in England says... Thanks, guys. Head online to have your say.

Next, a thick blanket of smog has all but shut down the northern

Chinese city of Harbin. Visibility is so poor, flights have been

cancelled, roads are closed and many children are at home because schools

are shut. Health authorities have told people to stay indoors to avoid

the foul- smelling air, which is expected to cloak the city for at

least another 24 hours. That's it - I will be back with loads more at

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