This paper describes the dramatic changes in the size of the world’s urban population and of its largest cities over the last 100 years. This includes the almost tenfold increase in the average size of the world’s 100 largest cities between 1900 and 2000. It also describes the changing distribution of cities between regions.

For centuries, farmers have developed technological innovations, to produce improved crops, livestock, tools and machinery and manage their resources in a sustainable manner. Yet in many countries, this kind of intuitive experimentation remains untapped, and farmers receive scant credit for their contributions.

This book Sustainable Agriculture: From Common Principles to Common Practice and its accompanying CD is an in-depth report on the symposium's findings as well as questions about the future direction of INFASA. In the next phase of INFASA the following key questions are to be addressed: What measurement tools and practices are needed by the various stakeholders? What are the most prominent and promising measurement tools and practices in use? How can we improve the use of measurement tools? What guidance can we offer for developing the next generation of sustainability measurement tools? How can we strengthen the data underpinning agricultural sustainability measurement? How can we use demonstration projects and promote capacity building? (Includes a CD featuring background information.)

About 40 percent of the human population depends upon food production made possible by synthetic nitrogen fertilizers.

This 8-page fold-out leaflet, practical for use in the field and easy to read, covers the subject of rearing dairy goats. It gives some background to the subject, outlines processes and provides tips, tables and explanatory line drawings.

This 8-page fold-out leaflet, practical for use in the field and easy to read, covers the subject of controlling Striga and stemborer in maize. It gives some background to the subject, outlines processes and provides tips, tables and explanatory line drawings.

This 8-page fold-out leaflet, practical for use in the field and easy to read, covers the subject of rainwater harvesting. It gives some background to the subject, outlines processes and provides tips, tables and explanatory line drawings.

This 8-page fold-out leaflet, practical for use in the field and easy to read, covers the subject of rearing indigenous chickens. It gives some background to the subject, outlines processes and provides tips, tables and explanatory line drawings.

This 8-page fold-out leaflet, practical for use in the field and easy to read, covers the subject of making high-quality cassava flour. It gives some background to the subject, outlines processes and provides tips, tables and explanatory line drawings.