Clouds play a very important role in the climate system. In this Unit we'll look at the different forms of water on the Earth and in the atmosphere. We'll also look at what clouds are made of, how they form and identify the many different types of clouds which exist.
The air we breath is not only made up of gases. It contains also aerosols. Aerosols are small liquid droplets or solid particles suspended in the air. Aerosols can form directly in the air or can come from seawater, from human activity, from plants, from volcanoes and from rocks. They have an important role in the atmosphere and can affect human health.
Without the warmth from the Sun there would be no life on our planet. In this unit we look at how clouds modify the amount of sunlight reaching the Earth and why clouds affect climate. Although rainbows do not play a role in climate, they are so majestic we also look at how they form!