A growing population
In the past 200 years or so, the global population (how many people are living
in the world) has gone up rapidly. In 1800, the number was around 1 billion
and it is now over 7 billion! This growth has had a severe impact the Earth’s
resources; more people means that we need to use more of these resources.
Furthermore, in these 200 years, nearly every country has gone through an
Industrial Revolution, so we are now using more energy than ever.
Global warming is a result of something called the enhanced Greenhouse.
Effect and it is having several knock on effects as well. The main cause is the
fact that we are using so many fossil fuels, which is adding extra CO2 to the
This extra CO2 is trapping more heat from the Sun and changing the balance
that the Earth works at. As well as temperatures, the enhanced Greenhouse
effect also affects rainfall patterns, migration patterns, sea levels and many