Cities in Deserts and the Sandstorm Problem: Anthropogenic Challenge and Adaptation Introduction: Urbanization in Extreme Conditions The creation and development of large cities in arid (desert) regions are among the most ambitious and risky projects of humanity. These agglomerations, such as Dubai (United Arab Emirates), Riyadh (Saudi Arabia), Las Vegas (USA), Cairo (Egypt), exist under conditions of chronic water scarcity, extreme temperatures, and the threat of sandstorms. Sandstorms (dust storms) are not just a meteorological phenomenon but a complex ecological-social problem exacerbated by anthropogenic activities. Their study lies at the intersection of climatology, geomorphology, urban planning, and social hygiene. Nature and Types of Sandstorms A sandstorm (dust storm) is the transport of vast masses of fine particles (sand, dust, soil) by strong winds. There are: Dust storms: Transport of small particles (less than 0.063 mm) over thousands of kilometers. Characteristic of the Sahara, Gobi. Sandstorms: Transport of larger particles (0.063-2 mm) over shorter distances, in the lower atmosphere layer. Their formation is facilitated by the absence of vegetation cover, dry soil, strong convective currents, and certain topography. The key anthropogenic factor is desertification, caused by overgrazing, deforestation, irrational water use, and excessive land reclamation. Cities themselves become drivers of desertification, consuming resources and altering the landscape. Impact of Sandstorms on Cities and Population Health: Respiratory diseases: Particles PM10 and PM2.5 penetrate the lungs, exacerbating asthma, bronchitis, causing silicosis. Long-term exposure is associated with increased cardiovascular and cancer mortality. Infections: Dust can carry fungal spores, bacteria, allergens. Psychological effect: Continuous storms lead to stress, claustrophobia, seasonal affective disorders. Economics and Infrastructure: Transportation collapse: Zero v ... Read more