a high-pressure locations increase the land in land to condense into desertification
desertification is creation_event. desertification is physical_creation_event. desertification is geological_process. desertification is physical_destruction_event. partially_blocking_sunlight has effect_of_cooling_earth desertification is physical_transformation. condensation_trail is cloud. desertification is destruction_event. acidification is increase_event. sand_mitigation is trying_to_prevent.