The planning crises of the 1980s, however, led to renewed interest in how planning happens, leading many futures consultancy firms to develop scenario planning methodologies. The turbulence of the 1990s and the renewed interest in managing uncertainty through scenario thinking and planning have caused all major management consultancies to develop their own scenario methodologies. Today, scenarios still play a major role at Shell and, although Shell is often considered the corporate champion of scenarios, turbulence scenario planning has become a more or less standard tool in most companies and consultancy firms’ toolboxes over the last decade or so