As our world is becoming increasingly interconnected and interdependent, it is also becoming increasingly volatile and unpredictable. Along with this change, practitioners have been confronted with the ways that many of the tools and ways of thinking in common use simply don’t work in complex contexts. Thus, for more than a decade, global development actors have been experimenting with approaches to delivering aid that draws on the science of complex systems. These new methods and approaches are changing aid practice in promising ways, challenging old modes of thinking and doing, at the same time requiring practitioners to tool up in some very new ways. more information