Desertification has re-emerged as a topic of global significance as a consequence of the United Nations conference on environment and development. When first addressed, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and "irrational" land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic, biogeochemical, political, and socio-economic processes that operate more or less continuously but at rates that vary in time and space. No attempts to arrest or reverse desertification that ignore this complexity are likely to succeed. This work describes the multiple dimensions of desertification as well as the novel approaches that have been used to address it within the economies of developed countries.

UNESCO commemorated its sixtieth anniversary in 2005. It was a year for refl- tion – a time to look back on the progress made and the achievements accomplished over the last 60 years. To celebrate the importance and relevance of science at UNESCO a publication entitled Sixty Years of Science at UNESCO: 1945–2005 was launched in 2006, which offers an insight into the organization’s commitment towards and endeavors in science from the past through to the present day. Within the United Nations System, UNESCO has one of the longest traditions in addressing dryland problems from a scientific point of view. As it happened, arid zones were precisely at the centre of UNESCO’s earliest efforts at international scientific collaboration in the study of natural resources. The first international research program dealing with these zones was launched back in 1951 under the direction of an International Advisory Committee. It was continued until 1964, after being raised to the status of a Major Project of the Organization in 1957. This Major Project was a pioneer program in many respects. One of its merits, and not the least, was that it blazed a trail in its interdisciplinary approach to the study of natural resources and its holistic view of the problems of arid and semiarid zones.

UNESCO commemorated its sixtieth anniversary in 2005. It was a year for refl- tion – a time to look back on the progress made and the achievements accomplished over the last 60 years. To celebrate the importance and relevance of science at UNESCO a publication entitled Sixty Years of Science at UNESCO: 1945–2005 was launched in 2006, which offers an insight into the organization’s commitment towards and endeavors in science from the past through to the present day. Within the United Nations System, UNESCO has one of the longest traditions in addressing dryland problems from a scientific point of view. As it happened, arid zones were precisely at the centre of UNESCO’s earliest efforts at international scientific collaboration in the study of natural resources. The first international research program dealing with these zones was launched back in 1951 under the direction of an International Advisory Committee. It was continued until 1964, after being raised to the status of a Major Project of the Organization in 1957. This Major Project was a pioneer program in many respects. One of its merits, and not the least, was that it blazed a trail in its interdisciplinary approach to the study of natural resources and its holistic view of the problems of arid and semiarid zones.

Desertification has re-emerged as a topic of global significance as a consequence of the United Nations Conference on Environment and Development. When first addressed over a generation ago, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and `irrational'' land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic, biogeochemical, political, and socio-economic processes that operate more or less continuously but at rates that vary in time and space. No attempts to arrest or reverse desertification that ignore this complexity are likely to succeed. In a single volume, `Desertification in Developed Countries'' describes the multiple dimensions of desertification as well as the novel approaches that have been used to address it within the economies of developed countries. This is done from the perspectives and experiences of the numerous authors who have contributed to this book.

Desertification has re-emerged as a topic of global significance as a consequence of the United Nations conference on environment and development. When first addressed, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and "irrational" land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic, biogeochemical, political, and socio-economic processes that operate more or less continuously but at rates that vary in time and space. No attempts to arrest or reverse desertification that ignore this complexity are likely to succeed. This work describes the multiple dimensions of desertification as well as the novel approaches that have been used to address it within the economies of developed countries.

UNESCO commemorated its sixtieth anniversary in 2005. It was a year for refl- tion – a time to look back on the progress made and the achievements accomplished over the last 60 years. To celebrate the importance and relevance of science at UNESCO a publication entitled Sixty Years of Science at UNESCO: 1945–2005 was launched in 2006, which offers an insight into the organization’s commitment towards and endeavors in science from the past through to the present day. Within the United Nations System, UNESCO has one of the longest traditions in addressing dryland problems from a scientific point of view. As it happened, arid zones were precisely at the centre of UNESCO’s earliest efforts at international scientific collaboration in the study of natural resources. The first international research program dealing with these zones was launched back in 1951 under the direction of an International Advisory Committee. It was continued until 1964, after being raised to the status of a Major Project of the Organization in 1957. This Major Project was a pioneer program in many respects. One of its merits, and not the least, was that it blazed a trail in its interdisciplinary approach to the study of natural resources and its holistic view of the problems of arid and semiarid zones.

UNESCO commemorated its sixtieth anniversary in 2005. It was a year for refl- tion – a time to look back on the progress made and the achievements accomplished over the last 60 years. To celebrate the importance and relevance of science at UNESCO a publication entitled Sixty Years of Science at UNESCO: 1945–2005 was launched in 2006, which offers an insight into the organization’s commitment towards and endeavors in science from the past through to the present day. Within the United Nations System, UNESCO has one of the longest traditions in addressing dryland problems from a scientific point of view. As it happened, arid zones were precisely at the centre of UNESCO’s earliest efforts at international scientific collaboration in the study of natural resources. The first international research program dealing with these zones was launched back in 1951 under the direction of an International Advisory Committee. It was continued until 1964, after being raised to the status of a Major Project of the Organization in 1957. This Major Project was a pioneer program in many respects. One of its merits, and not the least, was that it blazed a trail in its interdisciplinary approach to the study of natural resources and its holistic view of the problems of arid and semiarid zones.

Desertification has re-emerged as a topic of global significance as a consequence of the United Nations Conference on Environment and Development. When first addressed over a generation ago, attention was drawn to the compelling, spectacular images of sand dunes engulfing farmlands and parched cattle dying around wells. Research tended to focus on these events as unusual phenomena that involved the unfortunate collision of climate and `irrational'' land use. Since then, the work of many researchers has shown us that desertification is a multifaceted problem that involves climatic, biogeochemical, political, and socio-economic processes that operate more or less continuously but at rates that vary in time and space. No attempts to arrest or reverse desertification that ignore this complexity are likely to succeed. In a single volume, `Desertification in Developed Countries'' describes the multiple dimensions of desertification as well as the novel approaches that have been used to address it within the economies of developed countries. This is done from the perspectives and experiences of the numerous authors who have contributed to this book.