Regreening the Desert: A Step towards Global Food Security

Abstract

The global population is expected to surpass 11 billion by the end of the century, significantly increasing the demand for staple food crops. By 2050, food demand is projected to rise by approximately 50% outpacing population growth. However, vast desert regions, covering nearly one-third of the Earth’s land surface, pose significant challenges to local food production due to extreme environmental conditions. As a result, many desert nations rely heavily on food imports to ensure food security. In response, scientific advancements have focused on transforming non-arable desert lands into cultivable areas through innovative technologies. Over the past few decades, significant progress has been made in arid-land development, demonstrating the potential of science and technology to convert barren landscapes into productive agricultural zones. This review explores the breakthroughs in both open-field and controlled- environment agriculture that have enabled food production under extreme desert conditions, highlighting the latest technological innovations and their implications for global food security.