Dust in the air worsened in 2022 — UNGENEVA, Switzerland — The amount of dust in the world's air worsened in 2022, the United Nations said on Thursday, as it called for more research into how climate change may increase sandstorm hotspots. "Human activities are having an impact on sand and dust storms," WMO chief Petteri Taalas said in the global weather agency's Airborne Dust Bulletin. "The global average of annual mean dust surface concentrations in 2022 was slightly higher than that in 2021," it said. The severe dust storm over the Middle East in May which "dramatically reduced the visibility all over the region" and the cropland dust storm in the eastern United States that month were also detailed. "Sand and dust storms have impacts on health, on transport including aviation, ground transportation, road and railroad transportation and agriculture.