| Population growth and density Opinion1 #45530 Global population growth is well-known. Much of this is now in urban areas, and a few mega-cities are feared to be close to a tipping point, becoming ungovernable, with sanitation systems ineffective, and rickety systems for moving food into them near breakdown. |
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En citant: P.H. Liotta
Cité par: Robert Hall 3:44 AM 14 February 2010 GMT
Citerank: (2) 45553Disappearing beesHoneybees have been declining in the United States for decades. Feral honeybees succumbed to varroa mites and displacement by more aggressive bees. Bees are now kept commercially and trucked to farms for pollination service. But since 2006 commercial beehives have suffered annual "disappearances."109FDEF6, 45566Shanty towns proliferatePeople in impoverished regions have been pouring into cities, huge mega cities. One can estimate the numbers. Examples: Dacca, Kinshasa, Mumbai, Cairo, Karachi, Jakarta, Lagos. The worry: If these cities cannot add services for them, this trend will lead to ungovernable cities or failed states. 109FDEF6
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| Extrait - The crush of people into global mega cities is not a well-known issue. Liotta and a few others recognize that this is near the point of making the world a less civilized place, which in the United States is often described as increasing national security risks from "failed states." |