I find it kind of strange that stuff that we want to last - buildings, bridges, ships, trains, cars, furniture etc., - are made from materials that rust, rot and corrode, whereas stuff that we're likely to use only once, like grocery bags, yogurt, milk and cream cheese containers, foam packaging for appliances, etc., are manufactured from materials that will hang around for thousands of years ( unless recycled, of course; but then we have the Pacific floating garbage dump. . . ).