Infographic chart illustrating the different types of habitable land that existed 10,000 years ago. This period, which was after the last Ice Age, was made up of 57 percent forest, 42 percent wild grassland and 1 percent freshwater lakes and rivers. This contrasts with the way land exists today. As of 2018, 38 percent of habitable land exists as forests, 14 percent grassland, 1 percent freshwater. The remainder is taken up for use by agriculture, grazing and urban environments.