Page 200 - DK Children's Encyclopedia

Pollution SEE ALSO

▸ ▸ Cars p.52
▸ ▸ Climate change
Pollution happens when dirty or harmful substances p.60
are released into the world around us. Pollution kills ▸ ▸ Factories p.97
wildlife, causes health problems for humans, spoils the ▸ ▸ Farming p.98

countryside, and makes the world around us dirty. It is ▸ ▸ Industrial
even making our planet warmer. Revolution p.133
▸ ▸ Recycling p.205

Air pollution
Cars, trucks, factories,
and power stations
pump out gases into the
air. These can cause
illness, poison rivers
and oceans, and heat
up our world.

Land pollution
Poisons from garbage
dumps seep into the
ground and then into
rivers. Chemicals used in
farming kill insects, such
as bees, and can make
people ill.

Water pollution
Plastic garbage is
washed into the sea and
swallowed by sea life.
Harmful waste from
factories and sewage
from homes pollute
rivers and sea water.

Garbage at sea

When waste plastic is dumped
in the sea, it is carried away by Great Pacific
currents into gigantic, floating garbage patch
garbage patches. The biggest
patch is in the North Pacific Ocean.
It is called the Great Pacific garbage
patch and is bigger than the US.

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