Reclaiming wastelands is not an inexpensive proposition. We need businesses with the foresight to make dealing with waste part of the cost of daily operations. And we need government watchdogs to carry out their responsibility to see that they do. If not, 22nd century developers will be building on overflowing landfills and mountains of discarded computers. Or perhaps spent nuclear fuel rods and other plant components will simply make millions of acres off limits for habitation.
Time is still seemingly on our side.
We can still deal with the discards that an economy based upon massive consumption generates. But the piles are growing deeper everyday. All things considered, we got off pretty easy with slag. It possesses no half-life. But the refuse being created now may not be so easily hidden from view.