The UNCCD/G20 Global Land Initiative is a product of the G20, or Group of Twenty, an intergovernmental forum of the world's major developed and developing economies. The ambition of this Global Initiative is to prevent, halt, and reverse land degradation and reduce degraded land by fifty percent by 2040. The Bundeskunsthalle is a museum in Bonn that presents a wide range of exhibitions devoted to art and cultural history, as well as to science, technology, and the environment.