The greenhouse effect and natural causes of climate change

In this unit you can check your knowledge of Earth in space, our atmosphere, and how it is essential to life. You’ll learn about how the natural greenhouse effect keeps Earth warm, and how sunspots, changes to Earth’s orbit, volcanoes and asteroid strikes can cause global cooling and global warming. You’ll find out about the Ice Ages and physical processes that contribute to climate change.

You could also have a look at the unit on the evidence for human causes of climate change.

Take the quiz to find out how much you know and collect a badge!