Water and wind because they can shape different natural feautures. So water
Water restrictions are put in place, so less water is to be used. Fires are more likely to happen. You can get arrested for waste of water. Also, people where masks and other devices to keep blowing dirt out of their nose mouth and eyes.
Trust me I lived in Amarillo Texas for a while and we were drier than the dust bowl.
The Human Development Index (HDI) uses four statistical measurements What list are statistics used to measure the HDI?