Dozens of US cities may have entire neighbourhoods bulldozed as part of drastic "shrink to survive" proposals being considered by the Obama administration to tackle economic decline.
The US government is looking at expanding a pioneering scheme in Flint, one of the poorest US cities, which involves razing entire districts and returning the land to nature.
Mr Kildee said he will concentrate on 50 cities, identified in a recent study by the Brookings Institution, an influential Washington think-tank, as potentially needing to shrink substantially to cope with their declining fortunes.
"The real question is not whether these cities shrink – we're all shrinking – but whether we let it happen in a destructive or sustainable way," said Mr Kildee. "Decline is a fact of life in Flint. Resisting it is like resisting gravity."
Flint wants to specialise in health and education services, both areas which cannot easily be relocated abroad.
"Much of the land will be given back to nature. People will enjoy living near a forest or meadow," he said.
