Its deadliness was linked, among other things, to the weakness of buildings, the depth of the quake, the density of population, the fault and soil types, and the intensity of the shaking.
ECONOMIST: Why the Kashmir earthquake happened and what might be done
And that was at a time when the congestion arising from development and population density of the area was nothing like what it is today.
Levels of key nutrients, such as phosphate and nitrate, are highest in the Midlands, East and South of the country where population density is highest and farming methods the most intense.
Moreover, with the exception of the continent's handful of natural resource-rich, low population-density countries like Angola (see my September 9, 2008 column advocating an intensified strategic engagement with the geopolitically significant Southern African country), most of America's would-be partners are constrained by lack of the financial wherewithal to upgrade their capabilities to meet even short-term priorities.
Clearwire is not building a nationwide system but will focus on large communities with population density where the bulk of the demand is centered.
While the residents of Samso can take advantage of their island's blustery weather, open spaces and low-population density to be carbon neutral, the success of wind energy on a global scale may come down to simple economics.
The risk of loss of lives and economic disaster in the southern Mediterranean is high due to strong population density along its coasts: around 150 million people concentrated in 46, 000 kms of coastline, 110 million of them living in cities bordering the sea and some 200 million tourists visiting the area every year.
Population density not only increased the vulnerability of urban centres but magnified the impact of natural disasters, delegates heard.
BBC: NEWS | Science/Nature | Losing sight of the countryside
Clearly, the success of Detroit Future City depends on building population density around certain neighborhoods that are already in decent shape and stabilizing home values there.
FORBES: Detroit's Innovative Survival Plan Is A Model For The World - But Will It Work?
For Riis, the slum's biggest problem wasn't population density, lack of sunlight or even disease.
Certainly sustained economic growth, low density and more affordable housing all clearly continue to push the center of population gravity toward certain Sun Belt cities, primarily in the Southeast and Texas.
As I describe above, the 2000 favelas in the municipality of Sao Paulo are a vast terrain whose expanse and extreme population density are a deterrent to easy policing and even state military action.
Tourism is creating other problems for the local environment, too, including increased population density, over-dependence on wood as a fuel and construction source and the overgrazing and cutting of mountain slopes to feed livestock.
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