tomo. How about living in the holes themselves?
http://www.eveningnews24.co.uk/news/world-famous-photo-reveals-norwich-s-lost-tribe-1-3515827
Reminds me of the 2nd world war figure "Mr Whot" that my father used to draw for me when I was a very small boy.

Gwen. Remember this?
http://www.edp24.co.uk/news/collapsing-mines-still-a-threat-report-1-695831

Feb 4, 2018 at 1:34 PM | Uibhist a Tuath
Poorly consolidated "fill" compacts due to its own self weight. Variations in the level of water can trigger or delay organic decay of organic material, and the oxidation of metals etc. Finer material is more likely to settle/ compact, and may be washed out, whether by natural water movement, or burst water mains and drains.

Hence holes swallowing vehicles beneath roads etc. Modern Rome is occasionally swallowed by Ancient Rome, and the modern City of Mexico has similar issues.

A "solution feature" or "swallow hole", is the natural formation of a subterranean void or cavity, caused by chalk or limestone being dissolved. Their collapse can be sudden and tragic. Nobody knows where they are, until they show themselves.

Feb 4, 2018 at 8:33 AM | Unregistered Commenter Supertroll

Is the vulnerability to earthquakes due to inadequate consolidation of the infilled material? A decent shake and it settles and compacts. Unless the foundations of roads and buildings are built off the underlying strata, or designed to float on top of the rubbish (dubious) damage is inevitable.

Filling in ponds, gravel pits, WW2 bomb craters etc with rubbish, then building houses on top, has caused many problems in the UK, without earthquake assistance.

Supertroll
The area in Dundee was used as a green area, mostly sports fields the last time as was there a good 20 years ago now. Possibly Dundee airfield is on the same land. I imagine land reclaimed using waste is not good for building purposes for many reasons not just susceptibility to earthquake damage. On the other hand for large urban areas a large green area where building is impossible would be a positive thing.

With regard to waste management. IMHO it's a no brainer; recover usable content and burn the rest to make electricity.

On another topic Polar Bears. http://www.thegwpf.com/more-climate-hype-as-five-polar-bears-lose-weight/
When a species out grows it's food supply and has no natural predators ( the Intuits only allowed to take a few) The population needs to be controlled to remain healthy. There are about 30,000 Polar Bears reducing the population by a third would be the most humane.

Uibhist a Tuath, the most extreme form of landfill (and land reclamation) must be San Francisco. During the 1849 California goldrush, sailing ships would arrive at SF and were left to rot when the sailors abandoned them to go gold prospecting. Spaces between the ships were filled with rubbish to make new ground. This area (in part The Tenderloin) is particularly susceptible to earthquake shocks.

Theresa May is coming under increasing fire for her ineptitude in dealing with Brexit in an expeditions manner.In today's Daily Telegraph Bernard Jenkins accuses ministers of being 'vague' and 'divided'. He declares that Mrs' Thatcher won her battles by overruling civil servants and ministers. Shades of Yes Minister? here