Our weather resides in the atmosphere. It begins on the Earth's surface and becomes thinner the higher it gets. The oceans play a crucial role in controlling weather and climate. ‘Atmosphere and oceans’ examines the effects of these two influences and describes how they store and redistribute solar heat around the globe. What is the atmosphere made up of? What do we mean by ‘greenhouse gas’? The temperature of the Earth is determined by the balance between energy received from the sun and its loss back into space. Besides the energy that is reflected back into space, energy is absorbed by land and ocean, which warm up and then radiate this warmth out.