i' mark litke repting for "worldfos" in thailand. . >>> it was eastern ustralia's wors dust storm in 70 years, covering sydne and rrounding ars in a surre orange haze that dsrupted air traffic and other tranortation, made eathing difficult for some. that was yesterday adan rasclla of central's abc shows us at a difference a day makes. >> choking one day, perct the next. yestery sydney-siders woke up to this. today, this. all or new south wales -- >> we've bn cleaning since yesterday. >> outdoor businessesike fes wereit hard, not the most pleasant of places to be for coffee. the cleaners at olympistadium today. ,000eats had to b wiped do before tomorrow's preliminary league finals. and a the car was they were lapping i up as drivers amored. but for many businesses, the redout will cost tse of millio of dollars in lost productivi. >> the airlinealone, when they have a schedule disrupti like they did yesterday wit anes having to y back to wherthey came from, the fuel cost and disruption costs runto millions. >> the scientists say the storm carried around 5 million tons of soil mainly fr