Sandstorm days in BJ went from ~30s per year in 50s to single digits post 2000s. It's working, but sandstorm days also picking back up due to climate change (al

Sandstorm days in BJ went from ~30s per year in 50s to single digits post 2000s. It's working, but sandstorm days also picking back up due to climate change (also increasing floods and other enviroment disasters), so more accurately to suggest it's mitigating.