What is climate change?

1
Cars and lorries make carbon dioxide which is
causing climate change.
How do they make the carbon dioxide?
2
How do cars make carbon dioxide?
Cars, lorries and buses need fuel to make them
work. They usually need petrol or diesel. They
fill up at petrol stations. Where does petrol
and diesel come from?
3
Making petrol and diesel
Petrol and diesel are made from oil. Oil is
made naturally when fossilised sea creatures
become buried deep underground. Oil is called a
fossil fuel. The oil rig brings the liquid oil
to the surface and the tanker takes it to the
refinery. Oil contains lots of carbon but it is
not yet carbon dioxide.
4
Making petrol and diesel
The oil refinery converts the oil into petrol,
diesel and other useful materials.
5
Tankers deliver the petrol and diesel
6
Cars use the petrol and diesel
Cars and lorries have engines that burn petrol or
diesel. This gives the energy to move them along
the road. When the petrol and diesel burns, it
is convered into carbon dioxide gas. The carbon
dioxide escapes out of the exhaust pipe.
Carbon contained in the oil is converted into
carbon dioxide gas in the air. This adds to
climate change.
7
So burning the petrol or diesel makes carbon
dioxide.
Think about ways to reduce the amount of carbon
dioxide that is made by cars and lorries.
End presentation