Examines grassland ecosystems of the world using a large collection of spatial and temporal data, analyzing datasets primarily at the global level. It presents quantitative indicators and qualitative information on the condition of the world's grasslands, looking at the current and future capacity of these ecosystems to provide goods and services important to humans. The report warns that the world's grasslands have declined in their extent and condition, as well as their ability to support human, plant, and animal life.