Learning objectives – to learn how humans have impacted the
environment around them
The population of humans is ever growing and has currently reached to
around 7 billion and it is still growing at a fast rate.
This graph illustrates how the human population has grown rapidly.
The human population has grown rapidly due to the growth of modern
medicine and increasing the levels of sanitation and food.
One of the main negatives to the human population increasing is the levels
of waste we produce. This affects water, air and land.
Water – sewage and toxic chemicals from industry can pollute rivers, lakes
and oceans which affect animals and plants. Also chemicals, which are used
in agriculture, also drains into rivers and lakes which affect the animals and
Land – we bury a lot of household water and nuclear waste underground,
which can affect habitats of animals.
Air – smoke and gasses released from industry can affect the atmosphere
and pollute the air.