Two alternative scenarios of moderate contraction and convergence and tough contraction and convergence of resource use result, according to UNEP, in much tower projections of below 70 billion tonnes in 2050. A high population growth scenario, according to this study, would result in annual resource use of 200 billion tonnes. The study shows a number of alternatives to a business as usual scenario which could bring global resource use down to between 40 and 100 billion tonnes by 2050, depending on achievements in resource efficiency. Often full regional data is not available, so a snapshot for a country or group of countries from within the region has instead been provided.