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Anthropogenic dusts are those produced by human activities on disturbedsoils, which are mainly cropland, pastureland, and urbanized regions, and are asubset of the total dust load which includes natural sources from desertregions. Our knowledge of anthropogenic dusts is still very limited due to alack of data. To understand the contribution of anthropogenic dust to thetotal global dust load, it is important to identify it apart from total dust. Inthis study, a new technique for distinguishing anthropogenic dust fromnatural dust is proposed by using Cloud-Aerosol Lidar and Infrared PathfinderSatellite Observation (CALIPSO) dust and planetary boundary layer (PBL)height retrievals along with a land use data set. Using this technique, theglobal distribution of dust is analyzed and the relative contribution ofanthropogenic and natural dust sources to regional and global emissions areestimated. Results reveal that local anthropogenic dust aerosol due to humanactivity, such as agriculture, industrial activity, transportation, andovergrazing, accounts for about 25 % of the global continental dust load.Of these anthropogenic dust aerosols, more than 53 % come from semi-aridand semi-wet regions. Annual mean anthropogenic dust column burden (DCB)values range from 0.42 g m<sup>−2</sup>, with a maximum in India, to0.12 g m<sup>−2</sup>, with a minimum in North America. A better understanding ofanthropogenic dust emission will enable us to focus on human activities inthese critical regions and with such knowledge we will be more able toimprove global dust models and to explore the effects of anthropogenicemission on radiative forcing, climate change, and air quality in the future

Detection of anthropogenic dust using CALIPSO lidar measurements