covid could calls some uncertainty around the holidays. >> reporter: outdoor shopping centers like this have been especially popular amid covid concerns. and this is the time people tend to hit of brick-and-mortar stores as online sellers can no longer deliver in time. >> garrett: covid could cause some uncertainty, yes, indeed. we turn now to a possible solution to unclog shipping ports, where goods have been stacking up, as you have been reading, for months. a new pop-up concept is being used at the port of savannah, one of the nation's busiest. it could be applied nationwide. here is cbs' kris van cleave. >> reporter: that's the sound o the holiday rush at the port of savannah. here, it's not about delivering gifts. it's about clearing the backlog of cargo containers. three months ago, they were really piling up, sitting here for up to 12 days. it's now closer to seven days, and to help, the port established what amounts to four inland pop-up ports.