30/11/2015 Newsround

It's Ricky here live on CBBC with Newsround for you this Monday.

World leaders talk about the future of our planet.

And all the highlights from Britain's success at the Davis Cup.

Scientists say that by the time you are an adult, the world's climate

And they also think that time is running out to turn things around.

This week there's a big meeting of world leaders in Paris in France

Here's Newsround's guide to what's happening.

Every year, top politicians from 195 countries around the world

And this year, they want to make a new agreement which would see every

Every year, top politicians from 195 countries around the world

meet to discuss ways to slow down climate change.

And this year, they want to make a new agreement which would see every

Two degrees, that is the important number at this conference.

Scientists say that if the planet's temperature goes up

by more than two degrees, sea levels will rise by so much that

low lying coastal areas and islands could end up underwater.

Extreme weather like heatwaves, droughts and storms could happen

A third of all animal species could be wiped out.

Some experts believe that we are already halfway to this point

That's what they are going to find out.

World leaders will try to find a way to slow the rising temperatures

by focusing on renewable types of energy, like wind, solar

and wave power and reducing energy waste.

But some of these new ways of making energy are more expensive

Many countries are building clean energy but not quickly enough

Rich countries like the UK and the USA have promised to help

the poorer ones, but they disagree about the amount of money on offer.

So for the next 11 days, leaders will be trying to come up with

There's more on the Newsround website about climate changes

Today many world leaders have been giving speeches

French President Francoise Hollande said that the world was

The US President, Barack Obama, said that his country accepted

its role in creating the problem and its responsibility

This is the moment we finally determined we would save our planet.

It is the fact that our nations share a sense of urgency about this

challenge and a growing realisation that it is within our power to do

something about it. There's more on the Newsround

website about climate change and what's being talked about

at the conference. Next to our world champion tennis

team - Great Britain won the Davis Cup yesterday, beating Belgium

by three matches to one. It means they're the best

in the world. Here's Jenny with a look back

at how they did it. It's been 79 years since a British

team has taken the trophy And this time round,

with Andy Murray leading them, Britain and Belgium faced each other

in five matches over three days, with the first side to win three

matches allowed to take home Bet you never thought you would see

the day again. The Murrays have won the doubles,

inching Great Britain closer. Great Britain have done it

in most spectacular style. I felt very proud of everyone in the

team, proud to represent my country and that we managed to win the

biggest competition in the sport, so it's a good day.

We want your videos for our Newsround advent calendar.

This year we want to hear about your Christmas traditions.

If you don't celebrate Christmas, what do you do instead?

Newsround's back tomorrow morning with Jenny at 7:40am.

Have a great evening and I will see you soon.