This is the 12th in a series of Desert Technology conferences since 1991. These conferences focus on desertification issues & multidisciplinary solutions such as: Special characteristics and benefits of desert ecosystems Mechanism of desertification and its management Appropriate technologies for developed and developing regions The conferences provide opportunities for researchers to learn & exchange knowledge through technical presentations, participation in productive working groups, and in informal discussions. The issues of desertification are a global concern, requiring continued & expanding research to mitigate the consequences. Building upon previous experiences & accomplishments, DT 12 offers an opportunity to participate in discussions & the presentation of research projects (including natural, technological & human sciences) aimed at overcoming constraints of desertification. The conference welcomes researchers and educators associated with deserts & arid regions from diverse areas of arid zone science.