1. THEMATIC SLIDES

2. GRASSLAND

3. Narok, Kenya Peanut Basin, Senegal Revane, Senegal Wyperfeld National Park, Australia Upper Green River, United States Credit: World Biomes

4. GRASSLAND One fifth of the Earth's land surface is grassland - a biome found on every continent except Antarctica Sources: Earth Observatory; Grassland biomes can be found in the middle latitudes, in the interiors of continents Most of the world's natural grasslands have been converted to wheat or corn fields

5. Conversion of grasslands into agriculture Narok, Kenya 1975: The agricultural expansion is just beginning 2000: This image shows the degree to which farmlands have expanded

6. Farmlands abandoned for savannas Peanut Basin, Senegal Shows growing patchwork of savannas (greenish patches) 1979: Image shows farmland before being abandoned 1999: Hundreds of villages are scattered throughout the region to enjoy fallow and grazing lands

7. Impact of drought and over-grazing Revane, Senegal 1965: Ancient valleys cutting through gravelly plateaus, with extensive bushland vegetation 1999: The badland phenomenon spread extensively along the shallow valley slopes

8. Fire – a regular occurrence in Wyperfeld National Park, Australia 1973: Vegetation in the Wyperfeld National Park is mostly a rich green in the image 2000: The dark green areas are now mottled with light patches, areas where the ground is bare after a burn 2004: Significant additional burned areas

9. Changing landscape of Upper Green River, United States The landscape in 1989 Over 3000 wells (black/white dots) Have been approved in the basin, and development is occurring at a rapid rate

10. One Planet Many People: Atlas of Our Changing Environment Thank You! Free Downloads: www.na.unep.net Purchase: www.Earthprint.com GRASSLAND