UNDERSTANDING CLIMATE CHANGE

The greenhouse effect is a natural process that warms the Earth’s surface.

When the Sun’s energy reaches the Earth’s atmosphere, some of it is reflected back to space and some is absorbed and re-radiated by greenhouse gases

The problem we now face is that human activities – particularly burning fossil fuels (coal, oil and natural gas), agriculture and land clearing – are increasing the concentrations of greenhouse gases. This is increasing the greenhouse effect, which is contributing to warming of the Earth.